Astro Battle 2009

Astro Battle 2009 (or sometimes just Astro Battle, since 2009 is actually the model number) is a Space Invaders clone published by Bally Manufacturing in 1979 for the Bally Astrocade arcade system.

Gameplay
The aim is to defeat waves of aliens with a laser cannon and earn as many points as possible. Unlike Space Invaders, Astro Battle 2009 is in color.