Very interesting game
Plot: Well as most people know Guitar Hero really doesn't have a "plot", It's just a game where you play songs, get money to buy upgrades and then play more songs until you finish the game. And to top it off you have to do it 4 times if you plan on going for 100% complete.
Game Play: Basically simon says with a guitar and 5 buttons, nothing really to it.
Graphics: The game has not made a big change since the last GH, though it still has the same looking paper mache-looking stages, the character modeling has improved greatly.
Sound: The only actual sounds in the game are the menu clicking, guitar chords when you select something, and that weird sound when you miss a note
Audio: A rather good selection of music for this game, music so good teenagers will actually start listening to Cheap Trick, Aerosmith, and other washed out rock bands from the 80's. But in all seriousness, there are some pretty good songs on the game.
Conclusion: GH2 is an amazing sequel, and that's all there is to it. Although it will not teach you how to play an actual guitar, it sure inspires you to start playing it (if you don't already that is). Bottom line, GH2 is awesome. Now go forth and play the song Jordan by Buckethead, and get 100% and 5 Stars on Expert mode.
Thanks for reading,
Love from; Gamefreak1109.