Cosmic Avenger is a side scrolling shooter based on the arcade game. You are the pilot of a space fighter on a dangerous mission above a hostile alien planet. Your goal is to earn as many points as possible by using your missiles and bombs to destroy the various enemies you'll encounter. The aliens are armed with deadly missiles, ufo's, fuel domes, barrage guns, torpedoes, mines, tanks and more. You need to destroy as many of these as you can before they destroy you!