GUITAR HERO 2

Guitar Hero II Hints & Cheats
Guitar Hero II Cheat Codes
Codes

At the title menu, enter the code.
Cheat Effect
Yellow, Yellow, Blue, Yellow, Yellow, Orange, Yellow, Yellow Performance mode (Guitar God Mode?)
Orange, Blue, Orange, Yellow, Orange, Blue, Orange, Yellow Hyper Speed De/Activate
Y,Y,B,O,Y,B Air Guitar
O,Y,O,O,Y,O,Y,Y Flaming Head
B,O,O,B,O,O,BO,O,B Horse Head
B,O,Y,O,Y,O,B Crowd has Eyeball Heads
O,B,Y,Y,O,B,Y,Y Crowd has Monkey Heads
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
B, Y, O, B, Y, Y Air guitar
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, O, Y, Y, B, Y, Y Performance Mode (no HUD)
Y, Y, B, O, Y, Y, B, O Monkey Head Crowd
Y,O,B,O,B,O,Y Crowd has Eyeball Heads
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
Guitar Hero II Unlockables
Secret Guitars

Complete the designated in-game tasks to unlock these secret guitars in the shop.
Unlockable How to Unlock
Fish Guitar Beat Easy Mode
USA Guitar 5-Star every song on Easy
Casket Guitar Beat Medium Mode
Viking Guitar 5-Star every song on Medium
"Snaketapus" Guitar Beat Hard Mode
Eyeball Guitar 5-Star every song on Hard
Battle Axe Guitar Beat Expert Mode
"The Log" Guitar 5-Star every song on Expert
New multiplayer mode

Pro face-off mode is where both players play all the notes.
Unlockable How to Unlock
Pro Face-off Beat game on medium or higher
Unlocking Additional Basses

Here is how you can unlock additional Basses in Co-Op mode.
Unlockable How to Unlock
Gibson SG Bass Beat 10 Songs in Co-Op mode
Gibson Grabber Beat 20 Songs in Co-Op Mode
Gibson Thunderbird Beat 30 Songs in Co-Op mode
Hofner Bass Beat every song on Co-Op mode
Lava Pearl Musicman Stingray Get 5 stars on 10 songs in Co-Op
Cream SG Get 5 stars on 20 songs in Co-Op
Natural Sunburst Gibson Thunderbird Bass Get 5 stars on every song in Co-Op
Natural Maple Gibson Grabber Bass Get 4 stars on all co-op songs.
Guitar Hero II Glitches

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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.
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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.
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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.