Shadow Heroes TMNT. Help the Ninja Turtles to rescue April who has just been kidnapped by a mysterious and creepy ghost. After having chosen your character (Mikey, Raph, Leo or Donnie) then your weapon (shuriken or a robo turtle), chase the specter along the New York subway and use all your ninja skills to defeat your enemies. Stealth and your ability to hide in the shadows are the keys to your success. This game is one of the cartoon action games at RoundGames. Enjoy and have fun in playing this free online game.