A character from the Mario series that first appeared in Super Mario Bros. 3. After his appearance in Super Mario 3D Land, Boom Boom has been reappearing more frequently. He serves as one of Bowser's main henchman, usually guarding one his fortresses or airships and primarily attacks by swinging his fists around.
Boom Boom is depicted as a large koopa with a red shell, visible fangs, claws and two large arms. He may also have spikes on his shell depending on the game he is depicted in.
