Game Genie

This was a device made by Galoob that allowed players to hack their games, much like the Game Shark and Action Replay.

Models were made for the NES, SNES, and original Game Boy.

The Game Genie could not save codes, so you had to enter the codes each and every time. All three came packed with a booklet of codes. A magazine subscription would allow more access to codes before the internet came to be.

The SNES and Game Boy models also had a button or switch to turn the codes off and on while playing in case of situations where the codes may impair the game.