Ultimate Wildmutt is a playable alien.
Ultimate Wildmutt is now significantly larger and more muscular than Wildmutt. His fur is now a maroon-red color. He has small, fin-like growths on his shoulders and his chin is much larger. His quills are now gone, and have been replaced by 3 huge gray spikes on the back of his neck. He now has a small tail with a gray spike on the tip of it. His teeth are now slightly larger. His claws are now gray. At the 2011 Toyfair in New York, bandai showed that he has the ability to talk.