Yo Bro

Yo Bros. are enemies that are encountered in Woohoo Hooniversity during the events of Mario & Luigi: Superstar Saga. The enemy was vaguely Koopa-like, sported a magician's hat and cape and held two yo-yos (to which their name indicates), one red and one green. Whichever yo-yo it spun indicated which Mario brother it would attack. It could also fake out, but the "spinning" sound would not be heard it it wasn't really attacking. Like other Koopa-like enemies in the game, Yo Bros. were healed by fire.