The graphics in The Biggest Loser are pretty good for an exercise game. I've just gotten used to exercise characters scaring me. In this case though, they did a pretty good job of making them look human. They also use real videos for the introduction, which is nice. I did find the characters a little lacking, however. I've gotten used to being able to create my own characters in games. Now, I do realize that this might be more difficult in this game because the character slims down with you as you lose weight, but they still could have had more of a selection. You get to choose from 8 previous contestants on the show, four men and four women. You are allowed to choose the color of their shirt.
The background music is very hard to describe. It's not really upbeat enough for me, but it's not distracting either, so I guess it works. I would have liked the option to change music though, especially when you're doing something like yoga that is calming. The music really doesn't fit for yoga!
Sometimes the trainers repeat the same phrase twice in a row, which seems odd. One I heard "it's all about getting your heart rate up" 3 times in a row, literally one after the other. They needed some more phrases as well. I think I heard "Think how proud you'll be when you get this right" way too many times overall! I would have preferred not to be distracted by hearing the same things over and over from the trainer. I can understand motivating you, but in this case, it was just distracting.