A Koopa's Revenge

Mario had better watch his back! A Koopa’s Revenge is a Super Mario fan game set in a parallel universe where Bowser and company are the good guys, while Mario and his pals are pure evil. While our hero is in the little koopas’ room, Mario and company bust in on our buddy goomba’s birthday party. They smash up the place and kidnap all his friends. It’s up to one unlikely hero to get his revenge, once and for all (until the sequel).