Don't let the UFO touch the asteroids! Move the UFO by using the WASD keys. Use the mouse to aim where you are shooting. Press the key space to shoot at the asteroids. The asteroids duplicate them selves and get smaller and smaller until they disappear, so you'll have to shoot the asteroids more than once. Don't let the score get to 0 or the game will be over, so you'll have to keep shooting the asteroids to keep your score up!
I made this game by watching a video by Al Sweigert. I really do most of my games watching his videos on how to make them. So I have to give credit to Al Sweigert,.