A gigantic asteroid field is drifting through space threatening all planets in the system! Use your rockets to destroy as many asteroids as possible before they collide with any planets. Press the fire button at the right time to launch your rockets straight towards the asteroids to destroy them and get points. Fire perfect volleys of shots (without losing any rockets into space) for progressively higher bonuses. Shoot the UFOs crossing through space to get various bonuses and useful power-ups as the pace of the game quickens. To beat the high scores and unlock other game levels, you'll have to aim accurately and most of all, last as long as possible against the asteroid shower that becomes steadily more intense. Blasting asteroids has never been so fun and challenging!