Mettaton is a character in Undertale as well as a playable character in Super Smash Tale. He is a robot created by Dr. Alphys that can undergo a transformation into Mettaton EX. He has very high defence, and is also quite heavy as Mettaton, and Mettaton EX, who has high attack and speed along with being light and floaty. His home stage is Mettaton's Kitchen.