The Gameboy was a game that Little Pete had before the FAYZ. This Gameboy was how Petey interacted with the Gaiaphage. Long after the batteries died, Little Pete still played his game with the Gaiaphage. In the game Pete saw the FAYZ layed out. This was really the Gaiaphage putting images into Pete's head. Pete said in Lies that he lost to Astrid and she begged him to keep fighting.