The player can choose to be a samurai warrior, a gunslinger, or an intergalactic spy, depending on which world (Samuraiworld, Westworld, Orbitworld) the player is entering. The player's task is to shut down Westworld 2000, combating malfunctioning robots along the way, through 35 different levels with 11 weapons from the past, the present, and the future.
Westworld 2000 provides examples of:
- 20 Minutes into the Future: A 1996 game is set in 2000, with an abundance of robots.
- A.I. Is a Crapshoot: The robots will go out of control, and you'll have to stop them.
- Lady in Red: A prostitute in Westworld dresses up as this.
- Samurai: You'll encounter these in Samuraiworld.