NASA has found that a rain of asteroids fall on Earth. Now you're in space and control a satellite with a powerful laser. Your goal is to destroy all the asteroids before they break through the atmosphere.
Press the arrow keys to move the satellite. Use the mouse to point to asteroids. Click to shoot. If you hit, your score increases. Do not let them touch the satellite asteroids or fall and lose your energy. Do not let the asteroids fall on Earth or your score will decrease.