Play Chorus of Ironman
There are easy steps to doing so.
1: Go into CHEATS mode. You are not entering a cheat.
2: Play the following notes in tune to Ironman by Ozzy Osbourne.
Play red+green, red+yellow, (red+blue) twice, yellow+blue, yellow (twice), red, green (twice), red, yellow. And Repeat that once for the chorus of Ironman by Ozzy Osbourne.
We have more cheats and tips for this game here, Guitar Hero 3: Legends of Rock cheats
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