Mega Guy

Giant Shy Guy are Shy Guys that are fatter and bigger. They did not appear until Super Mario Advance. Strangely, they did not appear in Super Mario Bros. 2 but did appear in the remake.

They were going to appear in Yoshi's Story, making this their first appearance. However they were taken out of the game. Interesting, Giant Shy Guys were also going to appear in Yoshi Demo where a stomp would turn it into a regular Shy Guy. However since the game was cancelled, Giant Shy Guys did not appear.

A robotic doll Giant Shy Guy enemy appears in Yoshi's Island DS. He is not a living creature though, however it appears that this Giant Shy Guy was once going to be living but in the final version of the game it was a doll.