During a Mario Kart race, Mario becomes angry about non-Nintendo characters being included in the race and as a result, he decides to brutally murder almost everyone involved in the tournament. He starts off by killing Knuckles and then he kills Anakin Skywalker, Yoshi, Donkey Kong, Sackboy and Sonic. He even tries to kill his own brother, Luigi. As Mario is preparing to kill Luigi, Luigi tries to reason with him and said that they are brothers, but Mario claims that he does not have a brother