Zen: Intergalactic Ninja, based on a comic book of the same name, is a story about a militant environmentalist ninja named Zen. He has been assigned by a group a green, pointy-headed aliens to come to earth and stop environmental pollution by any means necessary. Eventually, he will have to find the big polluter, Lord Contaminous. The gameplay consists of side scrolling and isometric 3D scrolling action. Zen can run, jump, slice with this stick, or use powerups as the game requires.