Midbus is a unintelligent pig-like boss that is Fawful's minion in Mario & Luigi: Bowser's Inside Story who wants to conquer his own kingdom. He guards Bowser's Castle in this game as Fawful wants him to and fights Bowser three times in the game with the locations being in Cavi Cape, Bowser's Castle, and Peach's Castle. In Peach's Castle, Fawful turns Midbus into Blizzard Midbus to fight.