Out Zone is a shoot 'em up game released by Toaplan in 1990. The game is set in a post-apocalyptic world, where the player must fight against an army of cyborgs and mutants. The game features a unique gameplay mechanic, where the player can switch between two types of weapons: a forward-firing gun and a 360-degree rotating beam. The game also has a power-up system, where the player can collect items that enhance the weapons, speed and shield.