Although the combat is very annoying and boring, the acrobatics and other unlockables are really fun, and worthwhile.
Sound: The sounds in the game aren't much. Come to think of it, nothing really stands out. Many sounds are just collisions of weapons hitting other weapons or an enemy. Only a few sound come through the Wii Remote speaker.
Voices: The voice acting is truly a high point of TMNT. Although after seeing the movie, it's obvious not all of the voice actors came back. This is obvious in Raphael, Karai, Max Winters, and Splinter. The actors get into the roles well and fit the situations perfectly. Although certain voice overs are delayed. Also, the voices aren't nearly as annoying as past Turtles games, but they can still repeat... alot.
Music: I honestly don't think any of the music was connected to the movie. Ubisoft created a theme song, that is interesting, but not very memorible. The music is much like the sound effects. There, but no memorible.
Gameplay: Now this gameplay is hard to score. I'll start with the acrobatics. These areas are very fun. Jumping from rooftop to rooftop, scaling the sewers, climbing Winterscorp is super fun. Using your brothers attacks, and throws can be fun as well. The negatives with the acrobatics is that the coins are a dead give away to which way to go, leaving no room for thinking of which way to go. Also, each of the 4 turtles have "special abilities"... if you can call them that. Leonardo can slip through bars, which is used only about 4 times. Raphael can scale walls using his sai. This ability is used more than enough times, but it would be nice to use it in more than one set area. Donatello can use his Bo Staff as a "bo vault" which is used about 4 times throughout the entire game. Also it doesn't work in all areas. Michelangelo can use his nunchukus as helicopters to hover over areas. This is actually a useful ability. Now to combat. The combat in this game isn't great. Although it's better than the combat in more recent TMNT games. The game has areas that are set for combat. Stupidly, you are stuck in that area until a certain number of enemies is killed. I must say, while the Wii motion sensors aren't used well, the combat is more fun with it. I have even played the PC version and I must say that motion sensor is much more fun than just repeating button presses. Ubisoft has even included 9 Wii exclusive mini games. Each turtle has his own unique minigame. Raphael has a game in which you use Z and swing the Wii Remote to jump from 2 sides of a ledge down a hole. Leonardo has a game in which you use the Wii Remote to aim and the Nunchaku to throw shurikens or ninja stars. Donatello has a game in which you repeatily move the Wii Remote up and down and use A to jump, in a side scrolling mini game. Michelangelo has a game that has you using the Wii Remote has a helicopter and Nunchaku as directing your weight. Each of these minigames are unique, but only Donatello's is really entertaining.
Overall: I say that TMNT is a good game, but not an excellent one. It's still entertaining and the extra unlockables are pretty entertaining. So this game is a keeper for TMNT fans, but for everyone else watch and love the movie.
COWABUNGA, DUDE!