Guide your space ship by sliding your finger along the control bar at the bottom of the screen. Shoot the aliens while they are in formation, or, for extra points, blast them out of the skies while they are diving towards you. Destroying diving aliens in the correct order yields a damaged alien vessel, which you can kidnap and use to boost your firepower.

A short video of the game in action shows the smooth, smooth graphics, and old school style sound effects.