Perhaps the only thing Mutants in Manhattan gets right is the art design. Character design is absolutely on point, and hearkens back to the original comic books. The Turtles themselves look like the characters of a really high quality graphic novel. Unfortunately, none of this style carries over to the level design, which is as rote and boring as it could possibly get. You get a cookie cutter city populated with buildings that are almost identical to each other. I’d praise the animation work if I could make sense of it; regardless of which Turtle you’re controlling, combat almost always devolves into a nonsensical explosion of special effects and character models.
Mutants in Manhattan doesn't feature a catchy soundtrack like those of Turtles games past. In fact, the music is blandness personified. But thankfully, it generally stays out of the way throughout the entire experience. Sound effects are decent, but unremarkable. Given the impact-free nature of the combat, I suppose that was inevitable from the start. Voice acting is clearly the strong point of the sound design; characters' personalities are allowed to shine over the mindless dreck that occupies the screen most of the time. Since the Turtles themselves have very specific personalities, this was probably an easy thing to accomplish. But given the number of things that went wrong with this game, small victories are to be celebrated.