Mouser

Mouser is one of the various enemies that Mario and friends must face in the Super Mario Bros series. Mouser is a resident of Subcon who fights his enemies with bombs and serves the evil ruler Wart. Mouser originated from Super Mario Bros 2/Doki Doki Panic however unlike certain other enemies such as the Shy Guys Mouser was only in that game (and its new re-releases such as Super Mario Advance). However while Mouser was one of Wart's minions in Super Mario Bros 2 Mouser was one of Bowser's minions in the Super Mario Bros Super Show since Wart did not appear in the show.