This model is used for helping out whatever who you're playing as, by stomping your opponents to the ground and hitting them with a tennis racket (and no, no tennis racket included), what I noticed about this model is the fists, the fists are modeled very minorly and his textures on his fingers are just poorly drawn, anyways this model is downloadable, re-rigged in Mixamo. Credit to Nintendo, Fumihide Aoki and the models-resource.com