It looks fairly good for a DS game. There are some blocky characters, but nothing too severe. It isn't like you are ever confused about whether you are caring for a mini Shrek or a Dronkey. In fact, I would say that the cut scenes do not show near the polish the gameplay characters do which seems an odd reversal. The animations are very well done as the A.I. moves around the environment. The room is bigger than the camera, forcing you to look around and adding depth to the game.
The music is more than just repetitive. I had to turn it down for sanity. The sound effects are a little simplistic. I just expected the sounds to be a little, well, a little better. The voiceovers lead me to believe that they are more than likely pieced together from the actual actors. I just didn't get the feeling they did the voices themselves. The booklet offered no credits and neither did the game, so I am guessing they would have proudly mentioned that the voices for the game were authentic.