I rented this game for my 4 1/2 year old daughter who LOVES Barbie. The game is just a collection of mini games but many of them are cooperative games so I could help my daughter with the tougher parts. After playing through the games with her she was able to do most of the games on her own. However the game didn't hold her attention for long. She has been asking to play the Disney Princess game on and off for a year but this one only for a couple weeks.
I sure am glad I rented this one first! My six year old princess hated this game. Some of the games were so difficult even I couldn't do well. It's really wrong when a Disney Princess game is more challenging than Resident Evil 4. If you bought this one already, give it as a gift or sell it online! I hope the other Wii princess games are better than this one.