Not only were the Teenage Mutant Ninja Turtles radical, there were radically different versions of the characters over the past few decades. Michelangelo, Donatello, Leonardo and Raphael started as a very dark comic book series, were developed into kid-friendly toys, then a popular, bright TV show, live action movie characters and most recently CG animated characters in a film that tried to bring the series back to its roots. Now, ...