Invasion Alien is a simple shoot-'em-up with a faux 3D behind-view perspective, created with DIV Games Studio. You control a futuristic fighter jet that files ahead with the mission to shoot down UFOs. The player's craft is armed with a laser cannon and a limited supply or missiles, but can pick up other bonuses along the way. The game gets progressively tougher as more UFOs appear and they start shooting back. Overall, a very nice game with excellent visuals, although it does not offer as much variety as other titles in the genre.