Game Boy Software 4-Piece Set Pokémon Blue Pokémon Red Pokémon Green Pokémon Yellow ★Operation confirmed on Retro Freak For software with a backup function, since it is installed on the Retro Freak and played, the presence or absence of a backup battery is unknown. I confirmed the operation at the time of listing, but it may not start depending on the condition of the buyer's main unit. (Operation is not guaranteed) This is a used item, so there are scratches, damage, sunburn, and dirt. Please understand that we cannot show all of the scratches and dirt in the photos, so please purchase only if you agree. Also, it may look clean in the photos due to the lighting. Please refrain from purchasing if you are concerned about scratches or damage. ※ No box or instruction manual ※ No price negotiation ※ Simple packaging ※ Not sold separately Game Boy GB Game Software I am also selling other game software #pa_games 081039 081738