Air Buster is a horizontal-scrolling shoot 'em up arcade game developed by Kaneko. It was published by Namco in Japan and Sharp Image Electronics in North America. Two players control the "Blaster Fighter" star ships in their efforts to destroy a mysterious mechanical fortress orbiting Earth, with plans to take control of the planet. The Blaster Fighters can equip one of seven available weapons, which will change the ship's firepower and abilities, such as diagonal shots, homing missiles and small drones that follow the player's ship.

Air Buster is a horizontal-scrolling shoot-em-up game. Players choose between one of the two Blaster fighters through six scrolling stages. The Blaster fighters can equip one of seven weapons. The weapons include the Striker weapon which adds additional firepower through vertically aligned Options, the Reverse shot which fires two diagonal shots from the rear of the ship, the Six Way Shot which fires semi-automatic shots in six directions and the Homing Shot which tracks enemies all around the screen.

The other three weapons are Missile-based which vary from Red straight-firing Rockets and Green Homing Missiles. There is also the Border item which surrounds the front of the ship, keeping it from crashing into foreground objects. The only other Items include Power-Ups which increase the ship's standard shot power and Bonus Points that appear in the sign of Dollar signs.