Game Description:Cowabunga dudes! The Teenage Mutant Ninja Turtles return to take on their archenemy Shredder in the third TMNT installment, Mutant Nightmare. Play as your favorite TMNT character, Michaelangelo, Leonardo, Raphael, or Donatello. Go it alone or team up wirelessly with up to three friends. Fight the Foot Ninjas on New York City streets and infiltrate the Triceraton base in over 50 stages. Use the Turtles strategically to clear traps and avoid obstacles. Master gobs of moves and combos in vehicle, exploration, and, of course, straight-up fighting stages. There's so much action, it spills onto both DS screens!