Earth is under attack by a strange race of aliens and their cybernetic slaves. It's up to you to quell the threat and restore peace and harmony to the planet. You'll have all kinds of weapons at your disposal to exterminate the alien armada: electric ships, rapid-fire boomerangs, and pulse lasers. Through seven intense levels, you'll battle the extraterrestrial pests, traveling from the Mayan ruins to the underbelly of the planet.
The amazing graphics and top-notch sound will make you forget you're just playing a game, but don't spend too much time admiring the scenery, or else the Earth will be in big trouble!