- Product Name: MEGA MEMORY CARD - Compatible Consoles: Game Boy Color, Game Boy Pocket, Game Boy - Function: Saves up to 100 games This is a set of two, one of which is new. Made in France, but there is no region protection, so it works normally with Japanese consoles and games. Backups are saved to an EEPROM that doesn't require a battery, so there's no need to worry about battery depletion. When listing this item, I tested backing up and restoring save data from Pokémon Crystal, and it worked without any problems.