boom boom - super mario wiki, the mario encyclopedia
Boom Boom (sometimes parsed Boom-Boom or BOOM-BOOM) is one of Bowser's henchmen, and the most well-known member of the eponymous species.He is an antagonist in the Mario franchise and among Mario's most persistent foes. Boom Boom first debuted in Super Mario Bros. 3, where he often battles Mario or Luigi in fortresses.Boom Boom then later made his return appearance in Super Mario