Guitar shredding never hurt so much.... in a good way!!!
As with the old Guitar Hero games, there are multiple difficulties and it is HIGHLY recomended to start on either easy or medium. One of the major differences between Guitar Hero III and Guitar Hero II is that the new Guitar Hero's hard and expert difficulties are more likened to expert and just plain impossible. Finger cramping and arm numbing pain aside, hard does prove to be a good challenge once you have managed to master easy and medium.
In terms of gameplay, everything has remained the same EXCEPT for the cool little addition of guitar battles. Instead of earning star power, which is sort of like a bonus points multiplier, you get cool powerups that you use on the other player to make them lose. Not so much fun in singleplayer, but add a few shouting people and copius amounts of alcohol and you have an instant hit!
The soundtrack in this newest version is still great, offering something for just about all likes (and dislikes). There's also a ton of songs to unlock and buy from the shop as well as online packs that you can buy off the PlayStation Network.
All in all, the game sounds good and looks even better, with only a few distorted clipping issues coming through. It looks fantastic in HD, but alas, can only go up to 720p.
Apart from the insane difficulties of the harder levels and the restricted res and odd glitch in the graphics, this game is miles of fun to play, single player and multiplayer with plenty of replay value and an awsome wireless guitar to go with it.