Boom Boom (sometimes stylized as Boom-Boom or BOOM-BOOM) is one of Bowser's henchmen, and the most well-known member of the Boom Boom species. He is an antagonist in the Mario series and among Mario 's most persistent foes.
Boom Boom first debuted in Super Mario Bros. 3, where he battles Mario in fortresses, before the Mario Bros. fight a Koopaling in an airship. Boom Boom then later made his appearance in Super Mario 3D Land as one of the game's main antagonists who often appears in airships, along with his partner Pom Pom. A Prima Guide stated that Boom Boom was a "forgotten Koopaling".