This game has definitely improved from the first one. the biggest difference i have noticed was that the hammer ons actually work when they are supposed to. ya the soundtrack is awsome, the new guitars are cool, and even the graphics are better, but to be able to play the hard songs now because of the hammer ons is awsome. The sound track is amazing. Me personally I love heavy metal, so to see bands like shadows fall lamb of god all that remains megadeth and others on there was sweet. the characters are also improved from the last one. the grim ripper looks cool, but what the hell is up w/ that lars umlaut guy? he has to be the worst character ever. the other thing i liked was the fact that guitars that you buy in lower difficulties stay with you in harder ones. all in all this game is awsome. the multiplayer has improved a lot and the guitar has also improved. i recommend buying it even if you didnt have the first one.