I got this game for my grandson but found it far too advanced. The rating should be something closer to E-10 or E-15 as the songs are extremely fast and very difficult to follow along with. Actually, I never really figured out what the game part was other than trying to follow the lyrics.
Yes, you do need to buy the right microphone even though the microphone from the Rock Band worked some what. I let the grandchildren give me the ratings because basically they are the ones playing the games. It is boring! The songs are to fast! Would not buy or rent this game again. You just pick a profile then sing that is it!