| Air Instruments | Red, Red, Blue, Yellow, Green, Green, Green, Yellow |
| Always Drum Fill | Red, Red, Red, Blue, Blue, Green, Green, Yellow |
| Always Slide | Green, Green, Red, Red, Yellow, Red, Yellow, Blue |
| Auto Kick | Yellow, Green, Red, Blue, Blue, Blue, Blue, Red |
| Black Highway | Yellow, Red, Green, Red, Green, Red, Red, Blue |
| Flame Color | Green, Red, Green, Blue, Red, Red, Yellow, Blue |
| Gem Color | Blue, Red, Red, Green, Red, Green, Red, Yellow |
| Hyperspeed (all instruments) | Green, Blue, Red, Yellow, Yellow, Red, Green, Green |
| Invisible Rocker | Green, Red, Yellow, Yellow, Yellow, Blue, Blue, Green |
| Performance Mode | Yellow, Yellow, Blue, Red, Blue, Green |
| Star Color | Red, Red, Yellow, Red, Blue, Red, Red, Blue |
| Vocal Fireball | Red, Green, Green, Yellow, Blue, Green, Yellow, Green |
| Additional Line 6 effects (Music Studio) | Green, Red, Yellow, Blue, Red, Yellow, Blue, Green |
: beat Ace of Spades in career mode.
: Classic (80s) costumes/outfits & Zombie costumes/outfits can be unlocked by winning stars for specific instruments.
We are always looking for more cheats for Guitar Hero: Metallica. As far as that goes we are also looking for hints, tips, easter eggs, glitches, etc. So please cheat back often to find game cheats for Guitar Hero: Metallica.
: Beat "The Thing That Should Not Be" in Career Mode to unlock 3 songs: "Broken, Beat & Scarred", "Cyanide", and "My Apocalypse."
: You do not need to start a new game. Play through the career on any instrument and play all the songs you need to get enough stars to unlock the last song.
Back out to the difficulty selection screen, select Expert, and play the last song to "complete" the Career on Expert.