- Bonus characters
Successfully complete the indicated task in Career mode to unlock the corresponding character:

James Hetfield	Get 100 stars on vocals.
James Hetfield (Zombie)	Get 200 stars on vocals.
Shirley Crowley	Get 55 stars on bass.
King Diamond	Successfully complete the 'Evil' song with any instrument.
Lars Ulrich (Zombie)	Get 200 stars on drums.
Riki Lee	Get 55 stars on vocals.
Zach Harmon (Classic)	Get 150 stars in a band.
Lars Ulrich (Classic)	Get 150 stars on drums.
Matty Cannz	Get 55 stars on drums.
James Hetfield (Classic)	Get 150 stars on vocals.
Lemmy	Successfully complete the 'Ace Of Spades' song with any instrument.
Kirk Hammet (Classic)	Get 150 stars on guitar.
Rob Trujillo	Get 100 stars on bass.
Rob Trujillo (Zombie)	Get 200 stars on bass.
Kirk Hammet	Get 100 stars on guitar.
Zach Harmon	Get 100 stars in a band.
Kirk Hammet (Zombie)	Get 200 stars on guitar.
Marcus Fretshreder	Get 55 stars on guitar.
Rob Trujillo (Classic)	Get 150 stars on bass.
Lars Ulrich	Get 100 stars on drums.
Zach Harmon (Zombie)	Get 200 stars in a band.

- Bonus instruments
Successfully complete the indicated task in Career mode to unlock the corresponding instrument:

Klown bass	Get 45 stars on bass.
Mean Green bass	Get 25 stars on bass.

- Bonus songs
Successfully complete the indicated task in Career mode to unlock the corresponding song:

'Cyanide'	Successfully complete 'The Thing That Should Not Be' song with any instrument.
'Broken, Clear & Scarred'	Successfully complete 'The Thing That Should Not Be' song with any instrument.
'My Apocalypse'	Successfully complete 'The Thing That Should Not Be' song with any instrument.

- Activate Cheats
At the main menu, select 'Options', 'Cheats', 'Enter New Cheat', then enter one of the following codes to unlock the corresponding cheat option. If you entered the code correctly, a message will appear.

Flame Color Push Green, Red, Green, Blue, Red(2), Yellow, Blue.
Auto Kick Push Yellow, Green, Red, Blue(4), Red. This mode automatically plays the bass pedal for the drummer. It has no effect online.
Invisible Rocker Push Green, Red, Yellow(3), Blue(2), Green.
Star Color Push Red(2), Yellow, Red, Blue, Red, Red, Blue.
Metallica Costumes Push Green, Red, Yellow, Blue(2), Yellow, Red, Green.
Always Slide Push Green(2), Red(2), Yellow, Red, Yellow, Blue. This mode turns all guitar notes (not chords) into touch pad sliding notes connected by purple lines. It has no effect online.
Line 6 Effects Push Green, Red, Yellow, Blue, Red, Yellow, Blue, Green to unlock additional Line 6 effects in the Music Studio.
Black Highway Push Yellow, Red, Green, Red, Green, Red(2), Blue.
Always Drum Fill Push Red(3), Blue(2), Green(2), Yellow.
Gem Color Push Blue, Red(2), Green, Red, Green, Red, Yellow.
Performance mode Push Yellow(2), Blue, Red, Blue, Green, Red(2).
Air Instruments Push Red(2), Blue, Yellow, Green(3), Yellow.
Hyperguitar, Hyperbass, and Hyperdrums Push Green, Blue, Red, Yellow(2), Red, Green(2).
Vocal Fireball Push Red, Green(2), Yellow, Blue, Green, Yellow, Green.

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