As the sequels to last year's Robopon role-playing/card-trading games for the Game Boy Color, the Robopon 2 games add better graphics, larger game worlds, four-player competition, and other features. The two versions of Robopon 2, this and the Ring version, put you in charge of a robot company. You'll search for parts to combine into robot companions that you can trade or use to battle against other robots. The two game versions are identical in story and gameplay, but contain unique characters and items. By networking Game Boy Advance units together, players can create rare Robopons that they cannot create in single-player modes. By connecting the two versions of the game together, players will have access to the complete set of Robopons. Four-player battles can be waged off of one cartridge.