You are Blake Hunter. Earth Defense Force's top agent and World Champion Martial Artist. You find yourself transported to a mysterious and hostile world. You must fight and explore five deadly worlds to uncover the conspiracy that has selected you. The goal is to recover orbs which the aliens and other vermin have stolen.
Players can move any direction, look up and down, strafe, jump, and of course, shoot.
You are the last Ranaxian rebel, and the only hope to save your planet from certain doom. But that makes you the most wanted guy in the solar system, and your only chance for survival is to run. Trapped in the demented universe of Dr. Chang, you maneuver Master Won Liu through the dungeon mazes. In time, the Cyborgs waged a war against man to control the Earth. After emerging victorious, mankind banished the Cyborg's to a distant star system via a transdimensional teleporter.