Guitar Hero: Metallica Cheats - Xbox 360

Cheat Mode
Select "Cheats" at the main menu, then "Enter New Cheat" and press the following buttons to unlock the corresponding cheat option at the menu. A message will confirm correct code entry.

Press [Red], [Green]x2, [Yellow], [Blue], [Green], [Yellow], [Green] - Vocal Fireball.
Press [Red]x2, [Blue], [Yellow], [Green]x3, [Yellow] - Air instruments.
Press [Red]x3, [Blue]x2, [Green]x2, [Yellow] - Always Drum Fill.
Press [Yellow], [Red], [Green], [Red], [Green], [Red]x2, [Blue] - Black Highway.
Press [Green], [Red], [Green], [Blue], [Red]x2, [Yellow], [Blue] - Flame Color.
Press [Blue], [Red]x2, [Green], [Red], [Green], [Red], [Yellow] - Gem Color.
Press [Green], [Red], [Yellow], [Blue]x2, [Yellow], [Red], [Green] - Metallica Costumes.
Press [Green], [Blue], [Red], [Yellow]x2, [Red], [Green]x2 - Hyperguitar, Hyperbass, and Hyperdrums.
Press [Green], [Red], [Yellow]x3, [Blue]x2, [Green] - Invisible Rocker.
Press [Yellow]x2, [Blue], [Red], [Blue], [Green] - Performance mode.
Press [Red]x2, [Yellow], [Red], [Blue], [Red], [Red], [Blue] - Star Color.
Press [Yellow], [Green], [Red], [Blue]x4, [Red] - This mode automatically plays the bass pedal for the drummer. It has no effect online..
Press [Green]x2, [Red]x2, [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.
Press [Green], [Red], [Yellow], [Blue], [Red], [Yellow], [Blue], [Green] - This unlocks additional Line 6 effects in the Music Studio.

Achievements
Complete each achievement to get the allotted gamerscore:

...And Justice for All (50) - Earn 100 stars in Band Career or any single instrument Career.
2 X 4 (10) - Earn a band Hot Streak (4 player band).
Astronomy (10) - You hit every star power phrase in the song Orion.
Battery (30) - You scored 1,000,000 on the song Battery as a band.
Better Than You (10) - Win an online Pro Face-Off match.
Black (10) - Win an online battle match with the Fade to Black power up.
Blackened (5) - You created a custom tattoo.
Blitzkrieg (10) - Win an online Band v Band match (8 players).
Creeping Death (30) - You scored 575,000 on the song Creeping Death as the guitarist.
Cure (5) - You recovered from a poor performance in Quickplay or Career.
Damage Inc. (5) - You performed as the drummer.
Disposable Heroes (5) - You created a new custom rocker.
Dyer's Eve (30) - You scored 450,000 on the song Dyer's Eve as the drummer.
Enter Sandman (30) - You scored 330,000 on the song Enter Sandman on guitar.
Eye of the Beholder (5) - You created a new custom band logo.
Fight Fire with Fire (30) - You scored 340,000 on the song Fight Fire with Fire as the bassist.
Fixxxer (5) - You created a new custom instrument.
Green Hell (15) - Drummed every green note and finished the song Blood and Thunder with the rock meter in green.
Hero of the Day (30) - Complete a song on Expert + in Quickplay or Career (drums only).
Holier Than Thou (150) - Complete all instrument careers.
Invisible Kid (5) - You performed as the bassist.
James Hetfield (25) - Complete the career as the vocalist.
King Diamond (5) - You rocked out as King Diamond.
Kirk Hammett (25) - Complete the career as the guitarist.
Lars Ulrich (25) - Complete the career as the drummer.
Lemmy (5) - You rocked out as Lemmy.
Master of Puppets (10) - You scored the highest individual score on a song in a band.
Metal Militia (30) - 100% a song (4 player band).
Metallica (75) - Complete any instrument career on Expert (Guitar, Bass, Vocals, Drums or Band).
Motorbreath (5) - You performed as the vocalist.
Nothing Else Matters (50) - Complete the career in a band (2-4 player band).
One (10) - Complete a song with any instrument on Hard or Expert in local Quickplay or Career.
Reload (5) - Download a song from GHTunes.
Ride the Lightning (10) - You triggered star power simultaneously (4 player band).
Robert Trujillo (25) - Complete the career as the bassist.
Seek & Destroy (25) - Play 20 online matches.
Some Kind of Monster (5) - You performed as the guitarist.
Stone Cold Crazy (30) - You scored 65,000 on Stone Cold Crazy as the vocalist.
Stone Dead Forever (5) - You completed a song at The Stone venue.
The Ecstacy of Gold (50) - Earn $15,000.
The Four Horsemen (20) - Complete a song with all band members on expert in Quickplay or Career (4 player band).
The House Jack Built (10) - You completed a song in every In-the-Round venue.
The Memory Remains (5) - View a Metallifacts video.
The More I See (5) - Complete the Tutorials.
The Struggle Within (10) - Complete a song in a band in Quickplay or Career (4 players).
The Unforgiven (10) - Win an online Face-Off match.
The Unforgiven II (10) - You won an online Face-Off match by 25,000 points or more.
The Unforgiven III (10) - You won an online Pro Face-Off match by 25,000 points or more.
Trapped Under Ice (5) - You completed a song at the Ice Cave venue.
Wherever I May Roam (15) - Complete a song in every venue.

Unlock Characters
Kirk Hammett - Earn 100 stars in guitar career mode.
Kirk Hammet Classic - Get 150 starts on Guitar career mode.
Kirk Hammett ZOMBIE - Earn 200 stars in Guitar career mode.
King Diamond - Beat the song "Evil" in any instrument career.
Lemmy - Beat the song "Ace of Spades" in any instrument career mode.
Lars Ulrich - Earn 100 stars in drum career mode.
James Hetfield - Earn 100 stars in vocalist career mode.
James Hetfield Classic - Get 150 starts on Vocals career mode.
James Hetfield ZOMBIE - Earn 200 stars in Vocal career mode.
Robert Trujillo - Earn 100 stars in bass career mode.
Robert Trujillo Classic - Earn 150 stars in bass career mode.
Robert Trujillo ZOMBIE - Earn 200 stars in bass career mode.

Unlock Songs
"Broken, Beat & Scarred", "Cyanide", and "My Apocalypse" - Beat "The Thing That Should Not Be" on any career mode.