Having clean video game cartridges is key to their functionality but accessing the pins on original Atari 2600 cartridges can be a challenge. The solution? The 1UPcard Atari 2600 Cartridge Key. This simple tool has been made for retro gamers by retro gamers. Designed in such a way as to unlock the bottom door on the 2600 cartridges, gently pushing it up and out of the way and providing access to the pins. This makes the contacts easily accessible to be cleaned with the 1UPcard Mini Cartridge Cleaners. The Cartridge Key is reversible, making orientating the key and cartridge a certain way unnecessary.