Guitar Hero 2 [PSX]

Master code (unlock all)
This is the code that unlocks everything. Guitars, songs, videos, EVERYTHING. However, SAVING IS DISABLED when the code is inputted and you must turn off your ps2 to turn off the effect.

BLUE, YELLOW, ORANGE, RED, ORANGE, YELLOW, RED, YELLOW, RED, YELLOW, RED, YELLOW, RED, YELLOW, RED, YELLOW

Performance Mode
At the main menu press these buttons quickly: Yellow, Yellow, Blue, Yellow, Yellow, Orange, Yellow, Yellow.

Air Guitar
At the main menu press these buttons in quickly: Yellow, Yellow, Blue, Orange, Yellow, Blue.

Eyeball Head Crowd
At the main menu press in these buttons quickly: Blue, Orange, Yellow, Orange, Yellow, Orange, Blue. This will make everyone's head in the audience turn into a eyeball.

Flaming Head
At the main menu press in these buttons quickly: Orange, Yellow, Orange, Orange, Yellow, Orange, Yellow, Yellow. This cheat will give your character a head that is on fire.

Horse Head
At the main menu press in these buttons quickly: Blue, Orange, Orange, Blue, Orange, Orange, Blue, Orange, Orange, Blue. This will give your character a horse head.

Hyper Speed Mode
At the main menu press in these buttons quickly: Orange, Blue, Orange, Yellow, Orange, Blue, Orange, Yellow.

Make Grim Ripper play Gibson Les Paul
After unlocking the Grim Ripper, select him as your guitarist in Career mode, then exit Career mode. Next, go to Quick Play mode, choose any song at any difficulty, and either finish the song, or quit once it has started. Then, go back to Career mode, and the Grim Ripper will be playing the Gibson Les Paul with the Cherry Sunburst Classic skin! To make him play the scythe again, simply select it in the "Change Guitar" menu.

Monkey Head Crowd
At the main menu press these buttons in quickly: Orange, Blue, Yellow, Yellow, Orange, Blue, Yellow, Yellow. This will turn everyone's head in the audience to Monkey Heads.

Performance Mode
At the main menu press these buttons quickly: Yellow, Yellow, Blue, Yellow, Yellow, Orange, Yellow, Yellow.

Play The Scythe With (Almost) Anyone
First you must have Grim Ripper unlocked and select him. Then select another character. The character MUST have their other outfit unlocked. They will have the Scythe unless you change the guitar. Note: Since Clive Winston and Xavier Stone do not have an unlockable outfit, they can't play the Scythe.

Unlock Battle Axe
Successfully complete Expert mode.

Unlock Casket
Successfully complete Medium mode.

Unlock Eyeball
Get a five star rank on all songs in Hard mode.

Unlock Fish
Successfully complete Easy mode.

Unlock Snaketapus
Successfully complete Hard mode.

Unlock The Log
Get a five star rank on all songs in Expert mode.

Unlock U.S.A.
Get a five star rank on all songs in Easy mode.

Unlock Viking
Get a five star rank on all songs in Medium mode.

Co-Op Guitars
Here is how you can unlock additional Basses in Co-Op mode:

Gibson SG Bass - Beat 10 Songs

Gibson Grabber - Beat 20 Songs

Gibson Thunderbird - Beat 30 Songs

Gibson Les Paul and skin - Beat 40 Songs

Hofner Bass - Beat every song

Lava Pearl Musicman Stingray - Get 5 stars on at least 10 songs

Cream SG - Get 5 stars on 20 songs

Natural Sunburst Gibson Thunderbird Bass - Get 5 stars on every co-op mode song (stacks with below)

Natural Maple Gibson Grabber Bass - Get 4 stars on all co-op mode songs