Guardian is a 1986 side-scrolling beat 'em up arcade video game developed by Toaplan and published in Japan by Taito and North America by Kitkorp. In the game, players assume the role of a robot fighting against a multitude of enemies and bosses across six locations on a futuristic science fiction setting. It is notable for marking the debut of Twin Cobra and Hellfire artist Kōetsu Iwabuchi in the video game industry, serving as its graphic designer.