You control anti-aircraft cannons and must shoot down as many planes as possible, or more than your opponent. Each cannon has 3 firing positions. Choose the right one and shoot at the attacking airplanes!

Atari Anti-Aircraft arcade game must be seen as the precursor of the many "shooting gallery" and shoot'em up videogames to come in the following years.

The game has an undocumented option available that switches the planes into UFO's graphics (see video below) !!