Guitar Hero III: Legends of Rock Hints & Cheats The following letters signify the colors to press to enter the cheat code. Be sure to strum each time you enter a chord/note. Enter This What It Does 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)...