In this game you are flying in a battleship above the surface of a planet. Cannons and other enemy units are attacking you from all directions. You must avoid enemy bullets, save people that weave you from the ground and destroy as many enemy units as you can. The creators of this game have saved you some work. Your ship is continuously shooting forward. You can use a kind of destructing wave called powershot. To do so, press space whenever you have any powershots available. You can choose to move your ship whether with the arrow keys or with the mouse.