Teenage Mutant Ninja Turtles: Dark Horizons Description: Play as any of the turtles and fight against a lost puppy that has been mutated by the unknown green goo. Select your character at start up whether it be Leonardo, Rafael, Donatello or Michelangelo. Then run around the dark tunnels fighting off small mutated creatures until you can find the big lost beast.. and when you do you RUN!! Wall jump, dash and whatever you have to do to get away. Once you get to some green glowing man holes then you will be able to switch characters and choose another ninja turtle to fight as.