Faceball 2000 is a first-person shooter game for the GameBoy console. You control a H.A.P.P.Y.F.A.C.E., or Holographically Assisted Physical Pattern Yielded For Active Computerized Embarkation.
The graphics consist of flat shaded corridors and feature enemies that are simple geometric shapes with smiley faces on them. The simplicity of the graphics allows for full freedom of movement, similar to Wolfenstein 3-D. There are two main modes of play: single player mode and multiplayer arena.
In single player mode, your goal is to find the exit to each level, with a total of 70 mazes to complete. The multiplayer arena mode allows up to 4 Game Boys to be linked together for competitive play.