 This game was created foe use with the Intellivision or  Intellivision II game systems. Intellivisions catalog listed this  as a 1 or 2 player game but that was wrong. It is a 1 player only  game. Mattel tried to port this game to the Atari 2600 but they  changed so much that they just named the Atari game "Adventure of  Tron" and released it as a new game.