Click the green flag. Use the arrow keys to control your spaceship. Try to beat the high score. The large astroids are worth five points, the medium: two, and the small: one. Try to get the UFO for ten points. You only have three lives so avoid the astroids at all costs. Every fifty to one hundred-twenty seconds a thirty second laser power-up will appear.
The concept for this game comes from the original Atari Inc. game "Astroids."