Teenage Mutant Ninja Turtles 3: Mutant Nightmare - Nintendo DS Strong focus on teamwork, character development and control - play as your favorite Turtle or team up with friends to bring all 4 into the mix Exclusive Cooperative Attack for more shell shocking damage to enemies Gain experience points along the way as they slash and bash Foot Ninjas and powerful, well-known bosses from the TMNT universe Retro TMNT arcade game included as unlockable content More than 50 stages - 30 in the main mode & 20 in the Battle mode Strong focus on teamwork, character development and control - play as your favorite Turtle or team up with friends to bring all 4 into the mix Exclusive Cooperative Attack for more shell shocking damage to enemies Gain experience points along the way as they slash and bash Foot Ninjas and powerful, well-known bosses from the TMNT universe Retro TMNT arcade game included as unlockable content More than 50 stages - 30 in the main mode & 20 in the Battle mode