Guitar Hero II Cheats

Ps2
Cheat
Effect
Orange, Blue, Orange, Yellow, Orange, Blue, Orange, Yellow
Hyper Speed De/Activate
O,B,Y,Y,O,B,Y,Y
Crowd has Monkey Heads
B,O,Y,O,Y,O,B
Crowd has Eyeball Heads
O,Y,O,O,Y,O,Y,Y
Flaming Head
B,O,O,B,O,O,BO,O,B
Horse Head
Y,Y,B,O,Y,B
Air Guitar
Yellow, Yellow, Blue, Yellow, Yellow, Orange, Yellow, Yellow
Performance mode (Guitar God Mode?)
B,Y,O,R,O,Y,R,Y,R,Y,R,Y,R,Y
Unlock All (NTSC Version)
PAL Codes
At the title menu, enter the code. Enter again to de-activate.
Cheat
Effect
Y,O,B,O,B,O,Y
Crowd has Eyeball Heads
Y, Y, O, Y, Y, B, Y, Y
Performance Mode (no HUD)
Y, Y, O, Y, O, O, Y, O
Flaming Head
B, O, O, B, O, O, B, O, O, B, O, O, B, O, O, B, O
Horse Head
Y, O, B, O, Y, O, B, O
Hyper Speed
Y, Y, B, O, Y, Y, B, O
Monkey Head Crowd
B, Y, O, B, Y, Y
Air guitar
Hyperspeed on Dualshock
Just do the sequence on the main menu (while selecting "Career Mode"). And keep doing it repeatedly until a message appears. Don't do it too slow.
Cheat
Effect
Triangule, Square, X, Square, Triangule, Square, X, Square until a message appears
Activates the Hyperspeed

SEEKRIT

Guitar Hero II Glitches
Play The Scythe With 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.
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.
The "R0kk_0n" glitch.
The glitch allows you to take any song part you want, and play that over any other song.
Steps:
1. Choose your song.
2. Enter practice mode.
3. Pick the section you want to play.
4. Start that section on any speed(slowest is easiest to perform the glitch)
5. Unplug controller right when the options screen comes back up at the end of the section.
6. Reinsert controller and press continue. If notechart keeps scrolling, you performed the glitch.
7. Reset your PS2/Xbox 360 to undo the glitch.

Xbox 360

Cheat
Effect
Y,O,B,B,B,O,Y
Eyeball Head Crowd
O,Y,B,B,Y,O,B,B
Monkey Head Crowd
B,Y,O,R,Y,O,B,Y,B,Y,B,Y,B,Y,B,Y
Unlock All Songs
B, O, Y, O, B, O, Y, Y
Enables hyperspeed
Y,B,Y,O,Y,B
Air guitar
B, B, Y, B, B,O,B,B
Performance Mode
OYYOYYOYYBYYBYY
Flaming Heads
PAL codes for Various Cheats
Enter the following colors at the Main Menu Screen for activation.
Cheat
Effect
Blue, Yellow, Orange, Red, Yellow, Orange, Blue, Yellow, Blue, Yellow, Blue, Yellow, Blue, Yellow, Blue, Yellow
Unlock All Songs
Blue, Yellow, Orange, Blue, Yellow, Yellow
Air Guitar
Yellow, Yellow, Blue, Orange, Yellow, Yellow, Blue, Orange
Monkey Head Crowd
Yellow, Yellow, Orange, Yellow, Orange, Orange, Yellow, Orange
Flaming Head Crowd
Yellow, Orange, Blue, Orange, Yellow, Orange, Blue, Orange
Hyperspeed
Yellow, Yellow, Orange, Yellow, Yellow, Blue, Yellow, Yellow
Performance Mode