Guitar Hero Metallica Cheats

Line 6 effects

Press Green, Red, Yellow, Blue, Red, Yellow, Blue, Green. This unlocks additional Line 6 effects in the Music Studio.

Metallica Costumes

Press Green, Red, Yellow, Blue(2), Yellow, Red, Green

Hyperguitar, Hyperbass, and Hyperdrums

Press Green, Blue, Red, Yellow(2), Red, Green(2).
Performance mode

Press Yellow(2), Blue, Red, Blue, Green, Red(2).

Invisible Rocker

Press Green, Red, Yellow(3), Blue(2), Green.
Air instruments

Press Red(2), Blue, Yellow, Green(3), Yellow.
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Always Slide

Press Green(2), Red(2), Yellow, Red, Yellow, Blue. This turns all guitar notes (not chords) into touch pad sliding notes connected by purple lines. It has no effect online.
Auto Kick

Press Yellow, Green, Red, Blue(4), Red. This mode automatically plays the bass pedal for the drummer. It has no effect online.
Always Drum Fill

Press Red(3), Blue(2), Green(2), Yellow.
Gem Color

Press Blue, Red(2), Green, Red, Green, Red, Yellow.
Flame Color

Press Green, Red, Green, Blue, Red(2), Yellow, Blue.
Star Color

Press Red(2), Yellow, Red, Blue, Red, Red, Blue.
Vocal Fireball

Press Red, Green(2), Yellow, Blue, Green, Yellow, Green.
Black Highway

Press Yellow, Red, Green, Red, Green, Red(2), Blue