User blog comment:MetalShadow272/Why So Many Hedgehogs???/@comment-3990769-20110715193023/@comment-17720060-20110715225440

Uh...Sonic Rush Adventure had one, but a robotic one. Not to mention Sonic and the Secret Rings, since one of the stages is called Dinosaur Jungle, with a T-Rex. But if you're talking about a recurring character being a T-Rex, I don't see it happening, but it would be coolio!