Boss Bomb Bro. (aka King of the Sledge Bros, or Sledge Bomb Bro.) is a boss from Super Mario EX. He appears on Sledge Bro.'s Island as a boss of the last star of the level, Bombs Away. He is a black Sledge Bro. who have a cloud much like Lakitu.
Boss Bomb Bro. is the boss of the 10th course of the game, Sledge Bro.'s Island, he appears on the last mission of the level, Bombs Away. His attacks are: Throwing Bom-ombs and using summoning thunders.
Boss Bomb Bro. appears in New Super Mario Bros.: Revenge of the Bros. as the mini-boss of Plus World 6 Omega City. In this game, he is a high-ranked henchman of Kingdom Bro. and King Bro. His flashy nature renders him immune to basic attacks. He attacks by flying on his cloud and tossing Bob-ombs down at you. He also drops sparks of lightning as well as darts. To defeat Boss Bomb Bro., you will need to wait until he swoops down on you and then toss a Bob-omb at him. He gets faster and aggressive with each hit. Once Boss Bomb Bro. is hit 3 times, he is defeated, his fight is considered to be a harder version of Party Time Bro's boss fight earlier on. He is later fought again in Kingdom Bro.'s Castle as one of the many guards in the Castle. This game reveals that Boss Bomb Bro. is actually a powered-up Exploder Bro.