Large Gems Cheat
First go to OPTIONS, then go to CHEATS, then go to ENTER CHEAT, then enter this code with your guitar :G R G Y G B G O G B G Y G R G (GR) (RY) (GR) (YB) (GR) (BO) (GR) (YB) (GR) (RY) (GR) (GY)
The ones in brackets are double notes (they are strummed at the same time.)
More tricks, tips and cheats for this game are right here - Guitar Hero 3: Legends of Rock cheats
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