Xenos is an interesting action Friv game online. A rogue scientist has harnessed a new type of energy called Xenos, to create a mechanical city and an army of robots to terrorize the Earth. You have been selected to pilot Asterus, the Xenos energy-powered battle suit, and save the world. Use your powerful light saber weapons to battle your enemies. Try to complete all 30 missions filled with powerful bosses, giant lasers and deadly mines. Use your arrow keys to move, space bar for special attack. Unlock the Survival mode and Mission X upon completing the base game.