Controls: mouse to aim, click to fire gun, 1 for laser, and 2 for rocket, 3 for death ray, green flag to reset after death. To progress in the story mode complete levels and obtain passwords so you can leave and come back to where you left off. shoot down enemy jets before they cross the screen, get points for shooting down jets. Collect ammo, lasers and rockets by destroying supply crates before they hit the ground, how long can you survive? You get infi death rays
