Unlock all of the outfits in Guitar Hero Metallica for the Playstation 3, Nintendo Wii and Xbox 360.
1. From the main menu, select Options.
2. Select Cheats > Enter New Cheat.
3. Play the following on guitar:
- Green
- Red
- Yellow
- Blue
- Blue
- Yellow
- Red
- Green
Now all costumes should be unlocked for you to choose from.