Pick up a Japanese Game Boy, a British one and an American one, switch them on, and you will struggle to tell them apart. The hardware is the same the world over. Look at the boxes, the manuals and the little codes on the back, though, and three quite different products appear. Game Boy in its original Japanese packaging from 1989 (JPN) For a collector, those regional differences are part of the fun, and part of the challenge. Here is how the Game Boy changed as it travelled from Kyoto to the rest of the world. One Machine, Many Boxes At its core the DMG-01 was a single global design, the same grey unit that sold in the tens of millions everywhere from Tokyo to Texas. The original Japanese console and the UK retail version run identical hardware. What changed from market to market was everything around the machine: the packaging, the artwork and the language on the box and in the manual. Japanese boxes carried their text in Japanese and a restrained, product-focused design; Western boxes leaned on brighter artwork and the local language, and each one printed the importer and rating details for its territory. Even the small label on the back of the console was localised, stamped with the code that tied the unit to a single market. None of it affected how the machine played, but all of it tells a collector where a Game Boy was born. Variants, variants and more variants... How the Game Boy Regional Variants Differ The clearest way to read the Game Boy regional variants is by their product codes. A suffix such as JPN, USA, UKV or NOE, printed on the box and the unit, tells you exactly which market a Game Boy was built for. Those few letters are a collector's shorthand: JPN for Japan, USA for North America, UKV for the United Kingdom, NOE for Nintendo of Europe's German-speaking territories, and a whole family of others for the rest of the continent. Launch software differed too. In the West the console arrived bundled with Tetris, the puzzle game that turned it into a mainstream hit, as in this US Tetris bundle. Japan, by contrast, launched in April 1989 without Tetris as the pack-in, leaning instead on titles like Super Mario Land and Alleyway. The Many Faces of Europe Europe was never really one market. Nintendo's European arm and a patchwork of local distributors released the Game Boy country by country, each with its own boxes, manuals and product code. That is why a single continent produced so many variants: UKV for Britain, NOE for Germany and its neighbours, FAH for France, and more besides, often with multilingual manuals tucked inside. The console was the same in every case, but the paper around it was printed for one language and one shop window. For collectors this is both a blessing and a curse: there is always another regional box to chase, yet completing a true country-matched set takes patience. It also explains why some editions feel common in one country and nearly impossible to find in another. A rare bundle edition with Tetris and Super Mario Land Power and Play Across Regions Because the handheld runs on four AA batteries, a Game Boy from any region will happily play anywhere, and its cartridges are largely region-free, an unusual freedom for the era. Import a Japanese game to a European console and it simply works, which is why playing across regions has never been the hard part. The main practical difference is the mains adapter, which followed local electricity standards: roughly 100 volts in Japan, 120 in North America and 230 across much of Europe, so an original Japanese power supply is not safe to plug straight into a European socket. The link cable, by contrast, was universal, so two Game Boys bought on opposite sides of the world could still trade and battle. Timing was the other variable, with Japan getting the Game Boy in April 1989, North America that July, and Europe waiting until 28 September 1990. Why Region Matters to Collectors For collectors, region is where a Game Boy gains its story. A matching set, where the console, box, manual and product code all belong to the same market, is far more satisfying, and far harder to assemble, than a mix of loose parts. Sealed or complete regional examples are especially prized, and the rarer country variants sit near the top of any want list, as our look at the rarest and most valuable pieces shows. Region also feeds straight into value: scarcity in one market, a clean matching box and the right paperwork can all lift a piece well above a common loose unit, something we explore in what makes a Game Boy valuable. If you are assembling your own regional run, the complete collecting guide covers where to start and what to watch for. The collection deliberately spans Japanese, European and North American releases so the differences can be seen side by side. Browse them in the DMG-01 hardware reference.

Two Game Boys can look almost identical and yet be worth wildly different amounts. To a newcomer that seems strange. To a collector, the reasons are clear, and they are exactly what make the hunt so absorbing. So what actually makes one DMG-01 more valuable than another? Rarity and Variant The first factor is simple scarcity. A standard grey unit is common, but rarer variants command far more, from the colourful Play It Loud shells to regional exclusives like the white special edition and the 2-3 game bundles, widely regarded as one of the hardest of the line to find. Where a console was sold matters too, how Japanese, European and US Game Boys differ explains why some variants never left one market, which is often what makes them scarce elsewhere. Limited and promotional editions, made in tiny numbers, sit at the very top; the rarest and most valuable pieces show just how far that can go. Condition Is Everything After rarity comes condition. A scuffed, loose console is worth a fraction of a clean one, which in turn trails a complete-in-box example, which trails a factory-sealed unit. Graded and authenticated items can command the strongest prices of all. Scratches, yellowing and a tired screen all chip away at value, while a crisp, original-condition piece holds it. How to judge, grade and preserve that condition is a craft in itself, the Collector's Handbook walks through grading and care in detail. Completeness and Provenance Completeness ties the two together. The right manuals, inserts and packaging for a unit's region, all present and correct, can matter as much as the hardware itself. Clear provenance, knowing where a piece came from and that it is original and unmodified, adds confidence and, with it, value. That last point is where caution pays off: reproductions and “restored” units circulate, so knowing how to spot a fake or reproduction protects both your money and your collection. Demand and Timing Rarity only sets the ceiling; demand decides where a piece actually lands. A variant tied to a beloved game, a nostalgic colour, or a model that suddenly trends can climb in value far beyond what its scarcity alone would suggest, while an obscure unit few people chase stays affordable no matter how few exist. Prices also move with the wider retro market and the seasons, so the same console can fetch different sums a year apart. For collectors, that volatility is part of the appeal rather than a flaw. What Game Boy Value Really Comes Down To In the end, Game Boy value is the product of rarity, condition, completeness and demand acting together. A common console in rough shape will always be modest, while a rare variant, sealed and well documented, can be a genuine prize. None of this is financial advice, simply the lens a serious collector uses. If you're building your own collection, the complete collecting guide is the place to start, and you can explore the range across the collection and the hardware reference.

Every gadget has its reputation, and the Game Boy's is toughness. Where rival handhelds felt like delicate electronics, the grey brick felt like something you could hammer a nail with. That reputation is not just nostalgia talking; it was designed in, and it produced one of the most famous survival stories in all of gaming. It is also, quietly, one of the reasons a collection like this can exist at all. The Gulf War Game Boy The legend has a centrepiece. During the Gulf War in 1991, a Game Boy belonging to an American serviceman is said to have survived the bombing of its barracks, emerging charred and blistered but still able to switch on and play. That very unit, its casing melted and scorched, has been displayed under glass at Nintendo's New York store for years, running Tetris to this day. Whether or not every detail of the story is embellished in the retelling, the object itself is real, and it has become the ultimate symbol of the console's indestructibility. Toughness by Design That survival was not luck; it was philosophy. The Game Boy's chief designer, Gunpei Yokoi, followed a principle he called lateral thinking with withered technology: use mature, cheap, well-understood components rather than fragile cutting-edge ones. The result was a machine with no delicate backlight to shatter, a thick plastic shell, and simple, robust internals. A device built down to a price out of proven parts turned out to be a device built to survive, and generations of children stress-tested that theory in playgrounds, cars and schoolbags. Why Durability Matters to Collectors There is a direct line from that toughness to the hobby itself. The reason so many Game Boys, cartridges and even accessories are still around to be collected decades later is that they were built to take punishment and keep working. A more fragile console would have died in far greater numbers, leaving fewer survivors and a thinner historical record. The Game Boy's ruggedness is, in effect, a preservation feature: it ensured its own future. It also shapes what collectors prize. Because working units are relatively common, condition and completeness, clean shells, intact boxes, unfaded colours, become the real markers of rarity. The machines survived; what did not survive so easily was everything around them and everything on the surface. That is the quiet irony of a famously indestructible console: the hardest thing to find is not one that still works, but one that still looks new. The consoles that tell this story of survival are documented, with photos, in the collection.

Every classic machine has its ghost stories, and the Game Boy's most famous one has a name, or almost a name. It is called MissingNo, short for missing number, and for a whole generation of players it turned a quiet afternoon of Pokemon into something between a magic trick and a haunting. It is probably the most famous software bug in video game history, and it lived on a grey plastic cartridge. The Pokemon that was never meant to exist MissingNo appears only in the first generation of Pokemon, the 1996 Red and Blue games (and their Japanese Red and Green originals) that ran on the original Game Boy. It is not a real, designed creature. It is what the game shows when it is asked to display a Pokemon that does not exist, a leftover slot in the data with no proper name, no artwork and no stats. On screen it usually turns up as a jagged tower of scrambled black-and-white pixels, and its Pokedex number and details are nonsense. Encounter it in the tall grass of memory and the game simply improvises a monster out of whatever data happens to be lying around. How players summoned it The recipe spread across school playgrounds faster than any official strategy guide. First you visit the old man in Viridian City who offers to demonstrate how to catch a Pokemon. His little tutorial quietly stores your character's name in a corner of the Game Boy's memory. Then you fly straight to Cinnabar Island and surf up and down the narrow strip of sea along its eastern edge. That coastline has no wild encounters of its own, so the game reaches for that leftover name data instead and reads it as a list of Pokemon to throw at you. Out of that misread memory swims MissingNo, along with its cousin known as M with an apostrophe. The trick that made it legendary MissingNo would be a mere curiosity if it were not for one glorious side effect. Whatever item sits in the sixth slot of your bag has its quantity jump by 128 the moment you meet the glitch. Suddenly you have a mountain of whatever you were carrying. Players quickly learned to park their rarest, most precious items in that sixth slot, and so the glitch became the fastest known way to stockpile Rare Candies, which level a Pokemon instantly, and even Master Balls, which catch anything without fail. A bug in the code became, in effect, an infinite-item cheat that no cheat device was required to use. Why it happens None of this is magic, and that is the lovely part. The Game Boy has very little memory, so Pokemon reuses the same small patches of it for different jobs. Your name and the wild-encounter table happen to share space. On a normal route the encounter table is filled in properly, but the Cinnabar coast was never given one, so the game just reads whatever was left in that memory, which is the data from the old man's naming routine. Because the resulting Pokemon number points to an empty slot, the console draws its sprite from unrelated bytes and produces that famous wall of static. The bug is simply the Game Boy doing exactly what it was told, using the wrong page of its notebook. A word of warning MissingNo is mostly harmless, but not entirely. Meeting it commonly scrambles the graphics of your Hall of Fame records and can leave odd visual glitches until you reset, and in rarer cases players reported more serious corruption of their save. Nintendo was asked about it often enough that the official line became a simple do not do this, it may damage your game. The safest way to enjoy MissingNo today is exactly the way we do at the museum: as a story about how the hardware thinks, rather than something to try on a beloved original cartridge whose save you would hate to lose. MissingNo was not alone The first Pokemon games were a glitch-hunter's paradise, and MissingNo was only the most famous resident. The so-called Mew glitch let determined players meet the secret 151st Pokemon inside an ordinary cartridge, with no event and no cheat cartridge, by carefully juggling a trainer battle and the menu so the game miscounted who it was fighting. Others chased glitch cities, endless item tricks and stranger creatures still, trading rumours like ghost stories. Together they turned a children's monster-catching game into a decade-long puzzle about the machine underneath. That is really why MissingNo endures. It is a reminder that these cartridges are not sealed boxes of magic but small, knowable computers, quirks and all, and that some of the Game Boy's best-loved moments were never designed by anyone. To explore more of the machine behind the myths, and the games that made it famous, come and wander the rest of the Game Boy Museum. This piece is part of Pokemon and the Game Boy, the museum's guide to the whole Pokemon corner.

When a phenomenon gets big enough, it stops living only inside the games and starts colonising everything around them. Pokemon reached that scale on the Game Boy almost instantly, and the clearest proof is not the cartridges but the accessories. Nintendo took its ordinary, everyday add-ons, the cables and printers and cleaning kits, and re-dressed them in Pikachu's unmistakable yellow and black. The result is one of the most charming and collectible sub-worlds in the whole hobby. When a mascot takes over the hardware, not just the games. Here is a tour of Pikachu's hardware, the Pokemon-branded accessory line as it appears in the collection, and why these themed variants matter so much. The Link Cable: Poetry in Yellow Start with the most fitting piece of all. The collection holds a Pikachu-edition link cable, and there is something almost poetic about it. The entire design of Pokemon was built around trading over the link cable, so a Pikachu-branded version of that exact accessory is the theme wrapping back on itself. It turned the single most important piece of Pokemon hardware into a collectible object in its own right, and it is the natural cornerstone of any Pikachu accessory shelf. Pikachu Game Link Cable The Pocket Printer Next comes one of the most beloved peripherals of the era in its rarest coat. The collection includes a Pikachu-edition Game Boy Pocket Printer, the little thermal printer that let players print out screenshots, team rosters and Game Boy Camera photos on narrow sticker-backed rolls. In its standard grey form the printer is already a favourite; in Pikachu yellow it becomes a genuine showpiece, tying the printing craze directly to the mascot that drove the whole Pokemon boom. The Cleaning Kit and the Everyday Extras The branding reached even the most mundane corners of ownership. The collection holds a Pikachu-edition cleaning kit, the sort of maintenance accessory that almost nobody thought to keep, which is exactly why a surviving example is such a treat. It is a perfect illustration of how total the Pokemon takeover was: not just the exciting hardware but the humble housekeeping gear got the Pikachu treatment, because there was seemingly no product a child would not want more of if it had the mascot on it. Keep the Game Boy clean with a little help of a yellow friend A Cartridge That Rumbles: Pokemon Pinball Not every piece of Pokemon hardware is bolted on from outside; one of the most unusual sits inside a game. Pokemon Pinball turned the Pokedex into a pinball table, and to sell the fantasy it carried Nintendo's first built-in rumble motor, powered by its own AAA battery in a slot on the back of the cartridge. Pokemon Pinball with built-in rumble pack Every time the ball cannoned off a bumper, the whole console shook in your hands. Because the motor lives in the cartridge rather than the console, it buzzes an original 1989 Game Boy just as readily as a Game Boy Color, and although the game was sold under the Color banner it still plays on the grey brick in monochrome. It is a neat reminder that Pokemon pushed not only the Game Boy's software but its hardware, right down to making it shake. Beyond the Official Line Pikachu's presence spilled past Nintendo's own catalogue, too, and the collection embraces that wider world. It includes a one-off Pikachu fan-art Game Boy console, a custom, hand-decorated machine that is not an official product but earns its place because fan devotion is such a huge part of the Pokemon story. Alongside it sits a Pokemon music item, a small sign of how far the brand travelled beyond the console and into every corner of a child's daily life. Why Themed Hardware Is So Collectible Themed variants of ordinary accessories occupy a special place in collecting. On the one hand they are functionally identical to their plain counterparts; on the other, they are far scarcer, tied to a specific craze and a specific window in time. Because they were bought to be used rather than preserved, clean, complete, boxed examples are genuinely hard to find, and the more everyday the accessory, the less likely anyone kept it. A Pikachu cleaning kit that survived in its box is, in its own quiet way, rarer than many a game. There is a deeper reason they matter, too. The Pikachu hardware line documents the exact mechanism by which a game becomes a phenomenon: the moment the mascot leaps off the cartridge and onto every object in the ecosystem. You can read the scale of Pokemon's success directly from how many ordinary things got the yellow-and-black treatment, which is why this shelf tells the story better than the games alone ever could. Building the Pikachu Shelf For a collector, gathering the Pikachu accessories is one of the most rewarding themes to pursue, because it combines desirability with genuine scarcity and a clear, joyful visual identity. Set the link cable, the printer, the cleaning kit and the fan pieces side by side and you have a compact history of the single most important thing that ever happened to the Game Boy, told entirely through its hardware. Every Pikachu-edition accessory named here is documented, with photos, in the collection. This piece is part of Pokemon and the Game Boy, the museum's guide to the whole Pokemon corner.

By the start of 1996 the Game Boy was supposed to be finished. It was seven years old, it still drew the whole world in four shades of grey-green, and the rest of the industry had raced ahead to 32-bit consoles, polygons and CD-ROM. Then a small Tokyo studio called Game Freak released two cartridges about catching creatures in long grass, and almost overnight the ageing handheld became the most wanted machine in Japan. The cartridges were Pocket Monsters Red and Green. Their designer, Satoshi Tajiri, had spent his childhood collecting insects, and he built a game around the same quiet thrill: find a creature, catch it, and show it to a friend. The clever part lived in the Game Boy's link port. To complete the Pokedex of 151 creatures you had to trade with another player, because neither version contained them all. A machine that had always been played alone suddenly gave you a reason to meet up, and a console the industry had written off found a second life. What followed was less a hit than a phenomenon. Blue and then Yellow arrived, an animated series turned Pikachu into a household face, a trading-card game swept schoolyards, and an avalanche of yellow-and-black hardware followed. Pokemon grew into one of the largest entertainment franchises on earth, and all of it started on the grey brick. That is why the museum keeps a whole Pokemon corner, and why this page exists: to gather every Pokemon story in the collection in one place. The link cable at the heart of it all If one idea explains the craze, it is trading. Red and Green were deliberately incomplete on their own, with a handful of creatures living in one version and not the other, so the only way to fill the Pokedex was to connect two Game Boys with a link cable and swap. The same cable that had quietly shipped since 1989, mostly for two-player Tetris, turned out to be the key to the whole design. A solitary gadget became something you did shoulder to shoulder with a friend, and that single choice is the reason a nine-year-old handheld outsold machines a full generation newer. The craze did not stay in Japan for long. An enhanced Blue edition followed at home, and when the games reached the West in 1998 they arrived as Red and Blue, with Yellow close behind to ride the wave of the animated series. By then the little mouse on the box was famous far beyond anyone who had ever owned a console, and the handheld that was supposed to be winding down was selling faster than it had in years. The story did not end with the first generation. In 1999 Game Freak returned to the same grey hardware with Pokemon Gold and Silver, a second set of creatures with a day-and-night clock and a whole new region, and although they were built to add colour on the Game Boy Color, they still run on the original 1989 machine in plain monochrome. The craze reached sideways as well as forward: the trading-card game that swept the playground became a Game Boy game of its own in Pokemon Card GB, where you build decks and duel other trainers on the handheld. Between the Japanese Red, Green, Blue and Yellow, the second-generation Gold and Silver, and the card game, the collection now holds every main-line Pokemon title the original Game Boy can play; only Crystal, a year later, finally demanded a Game Boy Color. The handheld even got a pinball table of its own: Pokemon Pinball shook in your hands thanks to a rumble motor built into the cartridge, and despite being sold for the Game Boy Color it runs on the original 1989 machine too, in monochrome. Why Pokemon has its own corner of the museum Pokemon never stayed inside the cartridge. It spilled out into Pikachu-branded link cables, printers and cleaning kits, into a keyring-sized Game Boy that chimes the first games' music, into one-off consoles built by fans, and even into glitches that players passed around like folklore. The collection treats all of it as a single story, because together these pieces show how completely one handheld game reshaped Nintendo, and how a grey 1989 brick ended the decade as the home of the biggest name in gaming. The pages below are the way in. Explore the Pokemon corner Everything in the collection that touches Pokemon is gathered here, grouped by the kind of story it tells. Start anywhere. The big picture Pokemon on the Game Boy: The Little Monsters That Saved a Dying Machine: how Red and Green, and the insect-collecting boy behind them, rescued a handheld the industry had written off. How Pokemon Gave the Game Boy a Second Life: the craze that revived a console nearly everyone had declared dead. Born on the Game Boy, Part 5: Pokemon Changes Everything: the series finale, on how an entire global franchise was born on the grey brick. The games up close Pokemon Yellow, the Game With Pikachu at Your Heels: the Japanese original where Pikachu trails behind you and shows its moods, a fourteen-million-selling landmark. Great Game Stories, No. 7: A Trainer's Journey Across Kanto: a fairy-tale retelling of the Red, Green, Blue and Yellow adventure, from Pallet Town to Champion. MissingNo and the Most Famous Game Boy Glitches: the glitch that invented monsters and duplicated a generation's Rare Candies, and the other legendary bugs of the grey brick. Pikachu's hardware and spin-offs Pikachu's Hardware: The Pokemon Accessories of the Game Boy: the link cables, printers and kits all dressed in yellow and black. A Miniature Game Boy That Plays Pokemon's First Music: a keyring-sized DMG-01 replica that chimes the music of Red and Green. A Pikachu of My Own: The Fan-Art Game Boy Console: a one-off, fan-made Pikachu console, kept because fan culture is part of the story too. Guides, cards and the wider craze The Paper Trail, Part 2: Player's Guides and Strategy Books: the German Pokemon Player's Guide, with its poster map and sticker sheet, among the strategy books on the shelf. Game Boy in Disguise, Part 4: Cards, Stickers and Sweets: the Pokemon Collectors Egg and the sweet, papery Pokemon tie-ins that rode the craze. In the collection Gotta Collect 'Em All: The Pokemon Corner of the Collection: a guided tour of the games, the accessories and the fan pieces gathered on the Pokemon shelf. From two cartridges in 1996 to a shelf full of yellow hardware, Pokemon is the clearest proof that the Game Boy was never just an old games machine running down the clock. Pick a page above, or come and explore the rest of the collection.

No single thing did more for the ageing Game Boy than a game about catching creatures. Pokemon arrived late in the console's life, in 1996, at a point when much of the industry had already written the handheld off as yesterday's technology. Instead of fading out, the Game Boy got a spectacular second wind that carried it to a whole new generation of players and kept the original hardware commercially alive for years longer than anyone had expected. In its wake came something collectors adore: an entire sub-world of Pokemon and Pikachu branded hardware, built around the same little grey machine. This is a tour of that corner of the collection, and it starts, of course, with the games. The Games That Started It All The originals came first in Japan in 1996 as a matched pair, designed so that trading between the two versions was the only way to complete the roster. The collection holds both the Pokemon Red and Pokemon Green editions from that original Japanese release, the very versions that started the phenomenon in its home market. The West received the equivalent games as Red and Blue, represented here by Pokemon Blue, before the craze reached its peak with Pokemon Yellow, the Special Pikachu Edition tuned to the hit animated series, in which the mascot trailed loyally behind you on screen. Owning the Japanese pair and the Western editions side by side tells the story of how a domestic hit became a global one. The shelf does not stop at the first generation. Beside them sit Pokemon Gold and Silver, the 1999 sequels that added a second set of creatures and a real-time clock yet still play on the original Game Boy in monochrome, and Pokemon Card GB, the Game Boy version of the trading-card game, where the cards everyone was swapping in the playground became a game you could duel through on the handheld. Together they make this a complete run of what the original Game Boy could play: every main-line Pokemon from Red and Green through to Gold and Silver, with only the later Crystal holding out for a Game Boy Color. Pikachu Pinball with Rumble Pack Cartridge (for GB and GBC) The Link Cable at the Heart of It It is worth remembering why Pokemon worked at all, because it explains everything that follows. The whole design was built around the humble link cable: you simply could not catch them all on a single cartridge, so trading with a friend was not a bonus feature but the very core of the game. That single decision turned a quiet, solitary handheld into the most social object in the playground, a machine you needed a friend to complete. Even the link cable got its own Pikachu version It also transformed a technical accessory that most owners had ignored into an essential piece of kit, which is precisely why so much themed hardware followed. Pikachu Takes Over the Hardware Success on this scale meant merchandise, and Nintendo dressed its everyday accessories in Pokemon yellow and black. The collection includes a Pikachu-edition link cable, which feels almost poetic given how central trading over the cable was to the games themselves. A whole universe of Pikachu merchandise Alongside it sit a Pikachu-edition Game Boy Pocket Printer, for printing out your team on little sticker-backed rolls, and even a Pikachu-edition cleaning kit. These themed variants of otherwise ordinary accessories are exactly the kind of pieces that turn a shelf of games into a proper Pokemon sub-collection, and because they were bought to be used, clean boxed examples are far from easy to find. Keep your Game Boy clean with a little help of a yellow friend A Console of Pikachu's Own Fan devotion produced its own artefacts too, and the collection embraces them. It includes a one-off Pikachu fan-art Game Boy console, a custom, hand-decorated machine that is not an official Nintendo product but earns its place precisely because fan culture is such a large part of the Pokemon story. Pokemon Fan Art Console - One-of-a-Kind Beside it sits a Pokemon music item, a small sign of how far the brand travelled beyond the cartridge and into every corner of a child's life. Pieces like these capture something the official products cannot: the sheer intensity of affection the games inspired. Pokemon Game Music Collection Cards and the Wider Craze The Game Boy also sat at the centre of a much broader collecting frenzy. Period trading cards and Bandai cards show how the console and its characters spilled onto every kind of collectible, feeding the same playground economy of swapping and hoarding that made trading inside the games so addictive. Pokemon GB Collector Egg with miniature Game Boy The line between playing, collecting and trading blurred completely, until owning Pokemon meant owning cartridges, cards, accessories and toys all at once. That total saturation is exactly what a genuine phenomenon looks like. Why the Pokemon Corner Matters Gathered together, these pieces do far more than look good on a shelf. They document the exact moment a simple handheld became a global cultural juggernaut, and they show how a single yellow mascot reshaped not just a game library but the accessories, packaging and merchandise around it. There is also a neat historical lesson here: the Game Boy's greatest commercial triumph came not at its launch but near its supposed end, proof that the right software can rewrite a console's whole life story. For a collector, the Pokemon corner is where the Game Boy stops being a piece of hardware and becomes a phenomenon you can hold in your hands. Explore the Pokemon games and Pikachu-edition pieces, each documented with photos, in the collection. No Pokemon shelf is really complete without its bugs; see MissingNo and the most famous Game Boy glitches. This piece is part of Pokemon and the Game Boy, the museum's guide to the whole Pokemon corner.

In 1997 you could not walk past a schoolyard in Japan without hearing a Tamagotchi beep. Bandai's little egg-shaped virtual pets were a genuine craze, and like every craze of the age it spilled onto the Game Boy. Under the banner Game de Hakken!!, which means roughly "Discover it in a game!", Bandai turned the keychain pet into a full handheld experience. Three of these Japan-only cartridges now sit in the collection, and while they look like near-identical merchandise tie-ins, one of them hides one of the strangest circuit boards ever fitted inside a Game Boy cartridge. That is the fun of a set like this. On the shelf they are small boxes of a licensed children's game. Open them up, and two are ordinary Game Boy cartridges doing a charming job, while the third is a genuine piece of hardware trivia that still trips up emulators today. All three run happily on the original 1989 DMG-01, so there is more going on here than the cartoon artwork lets on. Bandai did not stop at one. The first Game de Hakken!! Tamagotchi reached the Game Boy in 1997, Tamagotchi 2 followed later the same year, and Osutchi to Mesutchi arrived in early 1998, each leaning a little harder on the handheld than the simple keychain toy ever could. At the height of the craze Bandai was shifting the little eggs by the tens of millions, so a Game Boy spin-off was less a gamble than a certainty. Game de Hakken!! Tamagotchi 2 (DMG-AT3J-JPN): a well-made pet sim running on standard Game Boy hardware. The first Tamagotchi: the pet sim at its purest The newest addition to the collection is the oldest of the three games: the original Game de Hakken!! Tamagotchi, which reached Japanese Game Boys in 1997, a few months before Tamagotchi 2. It is the purest of the set, sticking closest to the keychain toy that started the craze. You hatch a single pet from its egg and raise it to adulthood, feeding it, playing with it, disciplining it, healing it when it falls ill and cleaning up after it, with a couple of extra stats such as stress and selfishness nudging how it turns out. The one thing it does not do is keep real time: there is no clock in the cartridge, so instead the game lets you choose how quickly your Tamagotchi ages in the options. It is a conventional Game Boy cartridge with none of the special silicon that makes its Osutchi to Mesutchi shelf-mate so unusual, and it runs on the original DMG-01 like the rest. Having all three side by side is what makes the contrast so clear: two ordinary carts doing a charming job, and one quietly carrying a tiny computer's worth of extra hardware. Tamagotchi 2: the pet sim, grown into a world Game de Hakken!! Tamagotchi 2 (DMG-AT3J-JPN), arrived on 17 October 1997, and it is a sequel that does what good sequels do, which is add room to roam. Rather than just tending a single pet on a blank screen, you control a character called Mikachu around a small village: you search the bushes, trees and rivers for eggs, visit other houses, and talk to Professor Banzo. Mikachu's home has both a bug tank and a fish tank, so you can keep two pets at once, a forest (Mori) type and an ocean (Umi) type. Alongside the caretaking there are three minigames, and they are more charming than they need to be: a guessing game where a heart hides under one of twelve sand-covered cells while a skull waits to cost you a point, and a maths game with three difficulty levels where you help your Tamagotchi with its sums. The creatures introduced here went on to appear in later Bandai titles such as Mori de Hakken and Tamagotchi Ocean. On a Super Game Boy the game dresses the screen with a few of its own borders. It is, in short, a thoroughly ordinary and thoroughly likeable Game Boy cartridge, which is exactly what makes its shelf-mate so surprising. Osutchi to Mesutchi: the special cartridge The third box is Game de Hakken!! Tamagotchi: Osutchi to Mesutchi (DMG-AOMJ-JPN), released on 15 January 1998, developed by Tom Create for Bandai. It is built on the real-world Osutchi and Mesutchi toys, the male and female Tamagotchi units that could be clipped together so the two pets could marry and have offspring. The game leans into that idea: it starts by asking you to set the date and time, then has Mikachu choose one of three eggs, and from there you raise a male and a female and pair them up. Osutchi to Mesutchi (DMG-AOMJ-JPN) Asking for the clock at start-up is the first clue that this is no ordinary cartridge, and the board inside confirms it. Where almost every Game Boy game used one of Nintendo's standard memory controllers, Osutchi to Mesutchi carries custom Toshiba and Bandai silicon: a mapper known as the TAMA5, a TAMA6 microcontroller alongside it, and a separate TC8521AM real-time clock chip, sitting alongside the game's mask ROM. The point of the clock is that your Tamagotchi age in real time, growing and needing care by the actual calendar rather than by play sessions, even while the Game Boy is switched off. The cartridge even has its own built-in speaker, with a physical sound on/off switch on the shell, so the pet chirps and sounds its alerts straight from the module, not only through the Game Boy. The sound switch on the shell hints at the rare TAMA5 board and real-time clock inside. What makes this a collector's curiosity rather than a footnote is how rare that hardware is. The TAMA5 was a one-off: no other Game Boy game ever used it. Its unusual command interface and its real-time clock meant that for years cartridge dumpers struggled to read it correctly and emulators could not run it at all, and proper TAMA5 support only arrived in a handful of emulators relatively recently. A gentle pet game aimed at children turned out to be one of the most awkward cartridges in the entire Game Boy library to preserve, which is precisely the sort of contradiction this museum enjoys. Among collectors and emulator developers the TAMA5 has become shorthand for an awkward board, the kind you only hear about when someone is trying to make an old game run again. The two side by side Tamagotchi Tamagotchi 2 Osutchi to Mesutchi Released 1997 17 Oct 1997 15 Jan 1998 Cartridge hardware Standard Standard TAMA5 mapper, TAMA6 MCU, TC8521AM RTC Real-time clock No No Yes Built-in speaker No No Yes (sound on/off switch) Why a set like this earns its place Taken together, the three cartridges tell a small story about how far a licensed tie-in could go. The first Tamagotchi and Tamagotchi 2 show the comfortable version: well-made pet simulators running on standard hardware, one of them adding a village to explore and minigames to pass the time. Osutchi to Mesutchi shows the ambitious version, reaching for a real-time clock and a bespoke mapper so that a virtual family could live and grow on its own schedule. All three are Japan-only and all three play perfectly on the first grey Game Boy. Two are lovely period pieces; the other is a genuine piece of Game Boy hardware history hiding behind some very cheerful cartoon artwork.

Before any chip or circuit does its work, the Game Boy is a thing you hold. Pick up a DMG-01 today and the first impression is physical: a chunky, matte, grey-white slab that feels as if it could survive being dropped down a flight of stairs. That feeling is not an accident. This first part of the series stays entirely on the outside, with the plastic shell, the buttons and the controls, the parts your hands actually meet, and explains why Nintendo built each of them exactly the way it did. Two shells and six screws The body of the Game Boy is made from two moulded halves of ABS plastic, a tough, lightweight thermoplastic chosen because it shrugs off knocks and flexes rather than shatters. The front shell carries the window for the screen, the holes for the buttons and the moulded slots of the speaker grille. The back shell holds the battery compartment, the ports and most of the internal mounting posts. The two halves clamp together over the electronics and are held by six small screws, four around the edges and two more tucked inside the battery compartment. Two ABS plastic shells form the outside of the Game Boy That screw choice is a small piece of Nintendo history in itself. The six screws that hold the outer case shut are not ordinary screws at all: they are Nintendo's proprietary tri-wing screws, with a three-bladed slot that an everyday flat or cross-head screwdriver cannot grip. Nintendo used these security screws across its machines to discourage people from prising them open, and you need a special tri-wing bit to take a Game Boy's shell apart. The screws inside, the ones holding the circuit boards in place, are by contrast perfectly ordinary Phillips cross-head screws. None of this makes the console hard to service today, since tri-wing bits are cheap and live in every console-repair kit, but it is the reason you cannot open a DMG-01 with the screwdriver in your kitchen drawer. On the back and right edge you also find two small removable covers: the battery cover over the four AA cells, and a thin cover over the external connector (the EXT port), which is the link port. The two case halves: front shell with its openings, back shell with the battery bay. The famous grey, and why it is so tough The Game Boy's designer, Gunpei Yokoi, followed a principle he called lateral thinking with seasoned technology: instead of chasing the newest, most fragile components, use mature, cheap and rugged ones in clever ways. The case is that philosophy made solid. The plastic is thick, the corners are rounded, and the screen sits behind a recessed lip so a face-down drop lands on the frame rather than the glass. The most famous proof of that toughness is a single console displayed for years at Nintendo's New York store: a DMG-01 that was caught in a fire during the 1991 Gulf War, its casing melted and blistered, which still powers on and plays Tetris. It is an extreme example, but it captures the everyday reality that Game Boys built in 1989 routinely still work today, something that cannot be said of most electronics of the era. The D-pad: one small cross that shaped every controller since The directional pad on the left is deceptively important. Nintendo had introduced the single-piece cross, or plus, control on its Game & Watch handhelds, and the Game Boy inherited it. Rather than four separate buttons or a fragile stick, it is one moulded cross that rocks on a central pivot. Press an arm and that side tips down. Underneath sits the real mechanism: a soft conductive rubber pad. Each direction has a little dome of silicone with a disc of carbon-impregnated rubber on its underside. Pressing the pad collapses the dome, which gives the familiar tactile click, and pushes the carbon disc down onto two interleaved metal traces printed on the board, bridging them and telling the console that a direction is held. There are no microswitches to wear out, which is why a clean, original D-pad still feels crisp decades on. The same cross layout is now on essentially every game controller made. The controls removed: the cross D-pad, the A and B buttons, the Start and Select keys and the conductive rubber membranes behind them. A, B, Start and Select On the right are the two main action buttons, A and B, round and, on the grey DMG-01, a deep magenta. Below the centre sit the smaller Start and Select keys, moulded in grey and set at a slight diagonal. Every one of them works on the same principle as the D-pad: a silicone rubber dome with a conductive carbon pad that bridges two traces when pressed. On the board itself, small diodes sit in the button wiring. The buttons are read as a grid, or matrix, to save on connections, and the diodes stop presses from one row bleeding into another so the console always knows exactly which combination is held. It is a tiny, invisible detail, but it is the reason you can mash several buttons at once without the Game Boy getting confused. Screen lens, speaker grille and the little wheels A clear plastic lens is fixed into the front shell over the liquid-crystal display, protecting the delicate panel and giving the screen its slightly recessed, framed look. To its lower right, a grid of moulded slots forms the speaker grille, letting the single internal speaker breathe. Around the edges are the manual controls that a modern device would bury in software. A thumbwheel on the right adjusts the volume; a matching wheel on the left adjusts the screen contrast, which on a reflective LCD is essential for getting a readable picture in different light. On the top edge, a sliding switch turns the console on and off, and, cleverly, the same slider physically locks the cartridge in place so it cannot be pulled out while the power is on. The heat spreader and the inner frame Open the console and you find more than plastic and boards. A copper plate sits on the backside of the main chips on the logic board. Because the Game Boy's processor and memory are bare silicon capped with a blob of black epoxy rather than packaged in ceramic, this plate works as a heat spreader, drawing warmth away from them and evening it out across a larger surface. There is one further metal plate inside, at the cartridge slot, where it acts as a guide for the Game Pak as it slides into place. The boards themselves are held at the right height not by any plate but by the shell's moulded screw posts and support ribs together with the internal screws, which keep the whole stack rigid so nothing flexes or rattles when the console is knocked. Whether the copper plate also adds meaningful electrical screening is debated among restorers; what is clear and documented is its job as a heat spreader. The copper plate on the backside of the main board as a heat spreader Why the outside matters It is tempting to treat the case as just packaging for the clever electronics inside, but the shell and controls are a huge part of why the Game Boy succeeded and why it endured. The rugged plastic survived childhoods and journeys that would have killed a sleeker rival. The sturdy, serviceable build kept the machine repairable. And the cross pad and rubber-dome buttons gave a feel so right that the industry simply copied it. Everything from here inward, the boards, the chips, the screen and the sound, is what the next parts of this series take apart. Specifications at a glance Property Specification Case Moulded plastic, two halves Dimensions (W x H x D) 90 x 148 x 32 mm Weight ~300 g with batteries Case screws 6 (4 outer + 2 in the battery bay), Nintendo tri-wing Internal screws Phillips cross-head Directional control One-piece cross D-pad Action buttons A and B (magenta on the DMG-01) Other buttons Start and Select Button mechanism Carbon pads on silicone rubber domes Side dials Contrast (left), Volume (right) Power switch Top edge; locks the cartridge when on Removable covers Battery cover and link-port (EXT) cover The Series Overview · Part 1: The Shell, Buttons and Controls (you are here) · Part 2: The Main Board and the Sharp Processor · Part 3: The Screen · Part 4: Sound · Part 5: Power · Part 6: Connectivity and the Link Port

If the shell in Part 1 was the body, the main board is the brain and nervous system. Lift the plastic shell off and you are looking at the single green circuit board that makes the Game Boy a computer: a processor, its memory, a quartz heartbeat, and the connections out to the cartridge, the screen, the sound and the outside world. This part explains what each of those is and how they work together, in plain language. The logic board in the back shell, with the copper heat spreader over the main chips. One custom chip to run it all At the centre of the machine is a single chip Nintendo had Sharp build for it: the LR35902, whose processor core is usually called the SM83. It is an 8-bit processor, meaning it works on eight bits (one byte) at a time, and it runs at a modest 4.194304 megahertz. By 1989 standards that was already slow, but it was cheap, sipped power and generated little heat, exactly the trade Nintendo wanted for a battery handheld. Its instruction set is a hybrid. It borrows ideas from two famous 1970s processors, the Intel 8080 and the Zilog Z80, but it is neither of them: Nintendo and Sharp kept the instructions that were useful, dropped the ones that were not, and added a few of their own. The result is a chip that assembly programmers describe as Z80-like without being a Z80. Crucially, the LR35902 is more than a processor. The brain of the Game Boy - the Sharp LR35902 CPU Onto the same piece of silicon Sharp integrated the sound hardware, a timer, the serial controller for the link port, a small direct-memory-access engine for moving sprite data, and the basic logic that ties memory together. Packing all of that into one chip is a big reason the whole console fits on one small board. Black blobs and a copper lid Look closely at the board and you will not see neat rectangular chips with legs where the processor and memory should be. Instead there are smooth black blobs. This is chip-on-board construction, often called glob-top: the bare silicon die is glued straight onto the board, its microscopic pads are wired to the copper tracks, and the whole thing is sealed under a drop of black epoxy to protect it. It is cheaper and more compact than putting each die in its own plastic or ceramic package, and it is why a Game Boy board looks strangely bare. Black blobs - Chips sealed under a drop of black epoxy Because those dies sit exposed under only a thin epoxy cap, the copper plate described in Part 1 lies across them as a heat spreader, pulling warmth away so nothing runs hot. The board itself is stamped with its identity, typically DMG-CPU followed by a revision number and a 1989 Nintendo marking, next to a small inspection stamp from the factory. Nintendo quietly revised this board several times across the Game Boy's long life, which is why two grey bricks opened side by side can carry slightly different board numbers. Memory: eight kilobytes, twice over The Game Boy carries two separate banks of memory, each eight kilobytes. The first is the work RAM: fast scratch space where the running game keeps its variables, its map of the moment, the positions of characters and everything else it needs to change from frame to frame. The second is the video RAM, a dedicated store that feeds the screen. That video memory holds the raw material of every Game Boy image: small 8-by-8 pixel tiles, and the maps that say which tile goes where, plus the data for the moving sprites. The processor writes into video RAM and the display hardware reads it out, line by line, to build the picture. Sixteen kilobytes in total sounds almost impossibly small, and it is, but it was enough because the heavy lifting lived elsewhere: the real bulk of each game, its levels, graphics and music, rode on the cartridge, which the next point explains. The CPU board, component side: the Sharp processor and memory under epoxy, the crystal and the connectors. The heartbeat: a 4.194304 MHz crystal Near the processor sits a tiny metal can or cylinder: a quartz crystal. When a voltage is applied, the quartz vibrates at an extremely precise frequency, and that vibration is the clock that paces the entire machine. The Game Boy's crystal runs at 4.194304 megahertz, and every other rhythm in the console, the speed of the processor, the timing of each screen refresh, the pitch of the sound channels, is derived by dividing that one number down. The oddly specific figure is chosen precisely because it divides so cleanly into the timings the hardware needs. The cartridge connector At the top edge of the board, a row of contacts forms the cartridge connector. This is where the console's small built-in memory meets the game. A Game Boy cartridge is not just read-only storage: beyond its ROM, many carts carry extra RAM, a small battery to keep saved games alive, and a chip called a Memory Bank Controller. Because the 8-bit processor can only address a limited amount of memory at once, the Bank Controller lets a large game swap, or page, different chunks of its ROM into view on demand, which is how cartridges grew far bigger than the console alone could ever address. The cartridge is a whole topic in its own right, and the series returns to it. Everything else on the board The same board carries the quieter supporting cast. The serial controller drives the link port for connecting two consoles. A socket takes the six volts coming in, whether from the batteries or an external adaptor, which the separate power board then converts into the voltages the logic actually uses. The power switch feeds that supply in. And a flat ribbon cable runs from this board to the screen-and-button board on the front half of the console, carrying both the picture data to the display and the button presses back. Those two boards, and how the picture is actually made, are where the next parts go. Specifications at a glance Property Specification Processor Sharp LR35902 (core nicknamed SM83) Architecture 8-bit Clock speed 4.194304 MHz Instruction set Hybrid of Intel 8080 and Zilog Z80 Integrated on-chip CPU, PPU, sound, timer, serial, DMA Work RAM (WRAM) 8 KB Video RAM (VRAM) 8 KB Chip packaging Chip-on-board (glob-top epoxy) Clock source 4.194304 MHz quartz crystal Board marking DMG-CPU (+ revision), (c) 1989 Nintendo Cartridge interface ROM, optional RAM / battery / MBC The Series Overview · Part 1: The Shell, Buttons and Controls · Part 2: The Main Board and the Sharp Processor (you are here) · Part 3: The Screen · Part 4: Sound · Part 5: Power · Part 6: Connectivity and the Link Port

The DMG-01 front and its parts The original Game Boy, model number DMG-01, is a masterclass in doing more with less. Released by Nintendo in 1989, it was already technically behind what home computers and arcades could do, and within a few years its handheld rivals would outgun it on almost every specification that looks good on a box. And yet the Game Boy outsold all of them combined. Understanding why starts with understanding the hardware itself, so here is a component-by-component tour of the machine, followed by a full specification table. The guiding philosophy was efficiency. Nintendo's engineers, led by Gunpei Yokoi, deliberately chose mature, cheap, low-power components over cutting-edge ones. The result was a console that was affordable to buy, sipped batteries, and survived being dropped, thrown in a schoolbag and generally abused by children. Every technical decision below flows from that same priority. Every part of the DMG-01, laid out Component Specification Model number DMG-01 Released Japan April 1989, North America August 1989, Europe 1990 CPU Sharp SM83 (LR35902), a custom hybrid of the Intel 8080 and Zilog Z80 Clock speed 4.194304 MHz Work RAM 8 KB Video RAM 8 KB Display 2.5-inch reflective STN LCD, 160 x 144 pixels Colours 4 shades of grey (green-tinted screen) Sound 4 channels; mono built-in speaker, stereo through the headphone jack Cartridges ROM cartridge slot; many carts add battery-backed save memory Connectivity Serial link port for the Game Boy Link Cable Power 4 x AA batteries (6 V), up to around 30 hours; DC jack for a mains adapter Dimensions approx. 90 x 148 x 32 mm Weight approx. 220 g without batteries The Brain: The Sharp Processor The CPU board: Sharp CPU, RAM and the helper boards At the heart of the machine sits a custom Sharp chip, the SM83, often referred to by its Sharp part number LR35902. It is a hybrid design that borrows from two famous 1970s processors, the Intel 8080 and the Zilog Z80, without being exactly either. Running at just over four megahertz, it was modest even for 1989, but it was well understood, reliable and extremely power-efficient. Crucially, the chip is a system-on-a-chip: alongside the processor core it integrates the sound hardware, the link-port controller and the picture processing unit, which kept the overall design simple and cheap. Memory: Small but Sufficient The Game Boy carries eight kilobytes of work RAM for the running program, plus a separate eight-kilobyte bank of video RAM that feeds the display. By modern standards these numbers are almost comically tiny, but the console never renders a full screen of free-form pixels. Instead it works with small reusable tiles and movable sprites, a clever, memory-frugal approach that let designers build large, colourful-feeling worlds out of a very small pool of graphics data. The cartridge supplied the game code and art, so the console itself needed only enough memory to shuffle it around. The Screen: Reflective and Battery-Friendly The LCD and button board The famous 2.6-inch screen is a reflective STN liquid-crystal display running at 160 by 144 pixels, capable of showing four shades of grey through its green-tinted glass. It had no backlight, which is the single most criticised feature of the machine and, paradoxically, one of the reasons it succeeded. A backlight would have drained the batteries in a fraction of the time. By making the screen reflective and relying on ambient light, Nintendo traded screen quality for endurance, and endurance is exactly what a portable console needs. The trade-off did leave the display prone to motion blur, or ghosting, on fast-moving games, a quirk every Game Boy owner remembers. Sound: Four Channels of Chiptune For audio the Game Boy offers four sound channels: two producing tuneable square-wave tones, one playing back short custom waveforms, and one generating noise for percussion and effects. Out of the built-in speaker the sound is mono, but plug in headphones and you get genuine stereo. Simple as it is, this sound hardware has an enormous cultural afterlife: its distinctive bleeps and buzzes became the foundation of the entire chiptune music movement, and musicians still compose on real Game Boys today. Cartridges and Saving Your Game Games arrived on plastic ROM cartridges that slotted into the back of the console. Because the base machine had so little memory, the cartridge did much of the heavy lifting, and more advanced carts included memory-bank controllers to address larger games and, importantly, a small battery-backed memory chip to store save files. That little watch battery inside a cartridge is why a generation could keep a Pokemon or Zelda save alive for years, and why so many collectors today face the ritual of replacing a long-dead save battery. Connectivity: The Link Port On the side sits the serial link port, the unassuming socket that turned a solitary toy into a social one. Using the Game Boy Link Cable, two consoles could be joined for head-to-head play and, most famously, for trading. It is no exaggeration to say this humble port shaped gaming history: without it there would have been no two-player Tetris duels and, above all, no Pokemon, whose entire design depends on trading creatures between cartridges over the cable. Power and the Killer Feature The main, power and jack boards in the back shell. The Game Boy runs on four AA batteries delivering six volts, and here is where the whole design pays off. On one set of batteries it could run for up to around thirty hours, a figure its more powerful, backlit, colour rivals could not come close to matching. For a machine you actually carried around, that endurance mattered far more than raw graphical power. A DC jack also allowed a mains adapter for play at home. Battery life, more than any single chip, is the specification that won the handheld war. Build and Ergonomics The two case halves. Physically the DMG-01 is a chunky slab, roughly 90 by 148 by 32 millimetres and about 300 grams with its four batteries, carrying the now-iconic layout of a directional pad, two face buttons, and Start and Select. It was built like a brick and famously durable, a reputation cemented by surviving stories of units that endured extraordinary punishment and still switched on. That toughness was not an accident; it was part of the same design philosophy that chose reliability over flash at every turn. The back of the grey brick. Why the Modest Specs Won Read the specification table on its own and the Game Boy looks like it should have lost. Its rivals had colour, backlights and more powerful processors. But Nintendo understood that a handheld lives or dies on price, battery life, durability and the strength of its games, not on paper specs. By choosing cheap, efficient, proven components, Nintendo could sell the console affordably, run it for tens of hours on pocket-money batteries, and pour its energy into an unbeatable software library. The DMG-01 is the definitive proof that in hardware design, the smartest specification is the one that fits the job. The console, its link cable and the cartridges described here are all documented, with photos, in the collection. The Series Overview (you are here) · Part 1: The Shell, Buttons and Controls · Part 2: The Main Board and the Sharp Processor · Part 3: The Screen · Part 4: Sound · Part 5: Power · Part 6: Connectivity and the Link Port

Somewhere in the mid-1990s, a child parked at the family PC learned two things by heart: how to lose at Minesweeper, and how to make a colourful mess in Paint. GBS Windows puts both of them back in your hands, except now they run on a Game Boy Color. It is a loving, pixel-perfect impression of Windows 3.1, boxed on a real cartridge, and it is one of the most charming things to happen to the handheld in years. Windows 3.1, reborn on a Game Boy Our copy was a generous donation from the developer Ruben Retro to the museum, and it is unusual enough to earn its place here even though, as we will see, it never quite touches the original grey brick. A desktop on a handheld GBS Windows is the work of the developer Ruben Retro, built, like so much of the modern Game Boy scene, in GB Studio. Switch on a Game Boy Color and it greets you with a grey desktop straight out of 1992: a mock boot screen, a command prompt to launch the interface, and then windows, icons and a familiar menu, all squeezed into the machine's tiny palette. It is not a port of Microsoft's operating system and it does not pretend to be. It is an affectionate recreation of the look and feel, and it captures the nostalgia exactly. What lifts it above a static mock-up is that the programs actually work. There is a real game of Minesweeper. There is a little media player. And there is a Paint program that does something genuinely wonderful: it talks to the Game Boy Printer, so a doodle you make on the handheld can roll out of that small thermal printer on a strip of paper, precisely as nobody ever planned. Boxed like it is 1992 The care extends to the object itself. GBS Windows arrives as a boxed cartridge, and both the box and the cartridge are modelled on early-90s Windows 3.1. The packaging echoes the software boxes that once lined computer shops, and the cartridge label is the best joke of all: it is dressed to look like a 3.5-inch floppy disk, the little square of plastic that every Windows install once came on. Holding it is a small time-warp. When something arrives boxed and labelled with this much love, it stops being a curiosity and becomes an artifact, and artifacts are what this archive keeps. The cartridge, straight out of 1992: note the original Windows floppy-disk label style The wider world noticed too. When GBS Windows appeared it was written up everywhere from Time Extension to PCWorld, a rare piece of Game Boy homebrew that made the mainstream technology press do a double take. It arrived in 2025 at around forty-five dollars, and the first run sold out almost at once, with a second batch promised to meet demand. The boxed cartridge ships from Spain, and it is exactly the kind of modern object a Game Boy collection should be paying attention to. Strictly Game Boy Color Here is the one catch, and the reason this feature is an exception to our usual rule. GBS Windows runs only on the Game Boy Color, and on the Game Boy Advance that plays its cartridges. It does not run on the original 1989 DMG-01, the grey brick this museum is built around. Normally that would place it just outside our remit. But the project is so ambitious and so lovingly made, an entire desktop reimagined on a handheld, with working apps and a printer trick, that it would be plain stubborn to leave it out. Some things are exceptional enough to make their own case, and this is one of them. And there is one more reason to justify being part of the collection... Ruben Retro clearly agrees that the grey brick deserves a nod, because of the detail that seals it. Put the cartridge into an original DMG-01 and it does not simply refuse to start. It detects the older hardware, pops up a message explaining that it needs a Game Boy Color, and then, by way of apology, lets you play a round of Minesweeper anyway. A consolation prize, coded in on purpose, for anyone who tries it on the wrong machine. I could not resist documenting it. The screenshot below was taken on my Game Boy: Minesweeper, caught in four shades of grey. On an original DMG-01 it asks for a Game Boy Color, then lets you play Minesweeper anyway. Why it joins the collection That little joke is also why GBS Windows earns a shelf. It may not run its desktop on the DMG-01, but it still hands you a game on one, and the game is Minesweeper, which I happen to love dearly. A cartridge that is part operating system, part art piece and part playable puzzle is exactly the sort of thing this collection exists to keep, so it joins the archive under Specials. It also sits in a surprisingly old tradition. The Game Boy was never only a games machine: Nintendo itself sold translators and organisers, and people have since put all manner of things onto a cartridge. GBS Windows is a joyful modern entry in that lineage, the grey brick's younger, colour sibling borrowing the clothes of the beige box that once sat across the room. We are grateful that a copy found its way onto our shelves.