As a stand-alone game Guitar Hero: Metallica is decent. The 49 songs in the game are all good, though it would be great to be able to export them to World Tour and have everything in one place. That said, all the extra Metallica related content on the disc does somewhat make up for this shortcoming. Though when you compare it to the 80+ songs on World Tour, it seems a little underwhelming. All in all, if you're a fan of Metal or Metallica, you are going to enjoy this game. If you're a fan of Rock, then this game probably isn't for you.