Guitar Hero: Metallica Cheats - PlayStation 2

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.

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