Shy Guy

A Shy Guy is a masked enemy who appears in several variations. Shy Guys are one of the few fictional species in the series that debuted in a non-Mario game, Yume Kōjō: Doki Doki Panic, which was rebranded as the North American and European version of Super Mario Bros. 2. They also appear in the Mario Party series, The Mario vs. Donkey Kong series, and several sports games in the Mario series, among other games, though they play a large role as the standard enemies in many Yoshi games.