Guest B is the most powerful Mii in existence, even better than Matt, himself! He has extraordinary strength, prediction and talent in anything, he is also seen to have superhuman speed along with his friend Guest E.
Guest B is able to knock out any champion of any game in seconds and beat everyone in mini games and collect items before anyone can even comprehend it. Jokes have flown around Wuhu Island that he is a living god and is impossible to predict.