Game Boy

Strange characters on screen or a frozen game were often caused by dirty cartridge contacts, and Nintendo's answer was the Game Boy Cleaning Kit. Shaped like a cartridge, it slots into the console or a game and uses a plastic stick with cleaning pads on both ends to clear the contacts.

This Japanese version (DMG-08) includes replacement pads. The collection also holds the US version and third-party kits from Nuby and a Pikachu edition.