Shy Guy (ヘイホー, Heihō in Japan) is a timid troublemaker that wear robes and masks. He is a common enemie in the Yoshi series. In later games, Shy Guy join in some social activities like sports and parties. He makes an appearance in Mario Superstar Baseball and Mario Super Sluggers, still on Yoshi's team. In both games he has good chemistry with Birdo, also, he have near average statistics in all four categories, but being slightly better batters and pitchers than he is a fielder and a runner.