The Teenage Mutant Ninja Turtles are back, and maybe better than everThe seventh iteration of the franchise delves into the teenage-ness of its 15-year-old turtles in the gross-out humor and the comic book-like feel of the animationBy Jake Coyle / APThere are some good gags and clever innovations in the animated Teenage Mutant Ninja Turtles: Mutant Mayhem, but there is one brilliant idea: casting Ice Cube as the voice of the movie’s mutant insect supervillain Super Fly. But we’re now up to the seventh Teenage Mutant Ninja Turtles film, not counting all the series and videogames. Mutant Mayhem, currently in theaters throughout Taiwan, can’t entirely get over the feeling of trodding over well-covered turtle ground. But the most important twist to this Teenage Mutant Ninja Turtles iteration may be diving into the teenage-ness of its 15-year-old turtles. Yet this Teenage Mutant Ninja Turtles, while a half shell of those films, has its own low-key charms.