Shy Guy is a character from the popular video game series Mario, created by Nintendo. First appearing in Super Mario Bros. 2, Shy Guys are known for their distinctive masks and colorful outfits. They often serve as enemies in various games, but some titles feature them as allies or playable characters. Shy Guys are typically depicted as timid and easily startled, which is reflected in their behavior during gameplay. They come in various colors, each with unique abilities, and are often found in groups. Their popularity has led to appearances in spin-off games, such as Mario Kart and Mario Party.