GUITAR HERO II

This game has cheats that DO NOT affect achievements

Enter these at the main menu :

Enable Hyper-speed -

Blue, Orange, Yellow, Orange, Blue, Orange, Yellow, Yellow

There are two codes for Unlock All Songs depending on region.

NTSC = North America, Japan

PAL = Europe, Asia.

Unlock All Songs - (NTSC)

Blue, Yellow, Orange, Red, Orange, Yellow, Red, Yellow, Red, Yellow, Red, Yellow, Red, Yellow

Unlock All Songs - (PAL)

Blue, Yellow, Orange, Red, Yellow, Orange, Blue, Yellow, Blue, Yellow, Blue, Yellow, Blue, Yellow, Blue, Yellow 

Credit goes to Dooney for original cheat, edited by dylanroxsox.