Get into space ship and take care of the evil alien invaders! Equip your ship with powerful upgrades, out-maneuver the attacks and finally defeat the evil aliens! As in any univers, there are two kind of aliens, the good one and the evil ones. You control a spaceship of the good ones and will have to pass through the attack of the evil ones. Shoot them all to eliminate them, but also try to avoid their attack as they can easily destroy your spaceship. Collect bonuses left behind by them for greater score.