Use the Up and Down arrow keys. Avoid the meteors and collect bananas fired by the other SpaceShips to get more bullets. The UFO uses 2 bullets to fire. Use space bar to fire and X key to Laser. Press the C to get smaller. Use Z to shield but be carefully while you are using the shield. If you run out of power, you die. Then, try to collecting flying powers. Survive 2 minutes to win.