the player can switch between turtles before each stage. Each turtle has his own strengths and weaknesses. Donatello has a long range of attack, but attacks slowly, Raphael's attack is fast but has a very short range, and Leonardo and Michaelangelo are well-balanced. When a turtle is defeated, he becomes captured by the enemy. The game is over when all turtles are captured. After completing a stage, the player is given the opportunity to rescue a captured turtle. (wiki)