The old joke about the underlying plot of Teenage Mutant Ninja Turtles is made overt text here. Instead of four turtles, substitute one boy; in place of Splinter, there’s the Shaman (The Raid’s Yayan Ruhian), who moves like a wild quadruped, and bites like one too. Benjamin gets to have more fun as an unheard-by-most thought narration, especially during interactions with a character whose lips Boy cannot read.