It is very awkward and difficult
On an upside, the music is good. However, what made me dislike this game is that:
A) Difficulty is a bit too high.
B) Some of the games have unreasonable goals.
C) No save/auto-save function.
Some of the mini games are a bit too difficult, such as the Piano Simulator, the DDR, and the Disc Jockey. The Piano and DDR simulator both have something in common: when you try to hit the key for the right note, it is a bit iffy. Sure, the games allow you to rely on the beat, but when you think you hit the right key it says that you didn't. This puzzles me.
As for the disc jockey, you could have the area where you are supposed to catch the notes with more visible, and possibly increase the size to 1/4 of the circumference of the disc. To add icing to the cake, the notes move a bit too fast, especially when another disc appears! You were probably thinking realistically here, however, can a computer handle two mice, including a laptop? I don't think so.
5/10 for the review, 2/5 for the vote. Difficulty is iffy, but what saved you here from a REALLY bad vote was the music. Good choice of songs for the game! =)