Give this theme song points for narrative economy. In only a minute it sets up the Turtles’ backstory, outlines the stakes and introduces the four main characters with pithy couplets. (If you needed a reminder: Leonardo leads, Donatello does machines; Raphael is cool but rude, Michelangelo is a party dude.) It also reminds viewers of the series title, a dozen times. Teenage Mutant Ninja Turtles! Teenage Mutant Ninja Turtles! TEENAGE MUTANT NINJA TURTLES!