Hammer Bro

The Hammer Bro is a recurring enemy in the Mario video game series. Created by Japanese video game designer Kazuaki Morita, it is a subspecies of Koopa Troopa that walks upright and attacks by throwing hammer projectiles at the player character. Different variations of the character, based on projectiles they throw, include Boomerang Bro, Fire Bro, Sledge Br, Sumo Bro, and Ice Bro. It has appeared in nearly every Super Mario game since its first appearance in Super Mario Bros., and has also appeared in various animated and printed adaptations.