I'm a little surprised no one has posted this yet. IGN reports that the ESRB has ratings for two Teenage Mutant Ninja Turtles games. One is the new Ubisoft game for the movie. The other is one from Konami who made the original NES and SNES games, a few under the Ultra name. IGN reports that it is the 1989 game. Here is hoping for Turtles II (which is the only one I need), Turtles III, Turtles IV (the first SNES game), and Turtles Tournament Fighters. You can read the article here.