First off, I want to say that I don't have much experience with these "rock star" games. I've only played Rock Band for a couple hours and I've never played Guitar Hero. So this review of Lego Rock Band is coming from a relative newbie to these games.
A reviewer on GameFly wondered what Lego has to do with music. I admit that Lego has about as much to do with music as with Batman or Star Wars. However, the Lego versions of these comic book and sci-fi games have set Lego up as a brand that parents can look at and say, "I know that game will be safe for my kids." That's why I rented the game. Even though my tweens and teens have already played the original Rock Band game, I thought the Lego version might have a playfulness that was more appropriate for 12-year-olds. What got was only partially satisfying.
As expected, the skill level in Lego Rock Band is dialed down a bit. I usually sing in these games, and I set the vocals on Medium only if I really know a song. In Lego Rock Band, I played many songs on Hard or even Expert. This is fine for a person who has never played a Rock Band game before, but it is a letdown if you have played the original game first.
The true letdown for me, however, was the tour mode. Since this game is aimed at kids, I expected a bit more of a storyline between songs but there wasn't much of one. There isn't one in Rock Band, either, but that game is mainly about playing the songs. Why do a Lego version if you aren't going to add something to it? At the end of each song, you earn all these little trinkets that go in the Rock Shop. They don't really affect your gameplay; they're just cute.
I think the subtitle for this game should be My First Rock Band. Give it to a 9- or 10-year-old who has never played the original game, if you can find one.
GameFly: LEGO: Rock Band Wii Video Game | Buy LEGO: Rock Band for Wii | Rent LEGO: Rock Band