Hyper speed mode:
Press Orange, Blue, Orange, Yellow, Orange, Blue, Orange, Yellow at the main menu. The frets will be moving faster. You can still save your game when this code is enabled. Repeat this code to disable its effect.
Performance mode:
Press Yellow, Yellow, Blue, Yellow, Yellow, Orange, Yellow, Yellow at the main menu. Everything disappears except for the performance.
Air guitar mode:
Press Yellow, Yellow, Blue, Orange, Yellow, Blue at the main menu.
Eyeball head crowd:
Press Blue, Orange, Yellow, Orange, Yellow, Orange, Blue at the main menu.
Monkey head crowd:
Press Orange, Blue, Yellow, Yellow, Orange, Blue, Yellow at the main menu.
Flaming head:
Press Orange, Yellow, Orange, Yellow, Orange, Yellow at the main menu.
Horse head:
Press Blue, Orange, Orange, Blue, Orange, Orange, Blue, Orange, Orange, Blue at the main menu.
Unlock everything (PAL):
At the main menu, press Blue, Yellow, Orange, Orange, Yellow, Blue, Yellow, Blue, Yellow, Blue, Yellow, Blue, Yellow, Blue, Yellow.
Horse Head (PAL):
At the main menu, press Blue, Orange, Orange, Blue, Orange, Orange, Blue, Orange, Orange, Blue, Orange, Orange, Blue, Orange, Orange, Blue, Orange.
Flaming Head (PAL):
At the main menu, press Yellow, Yellow, Orange, Yellow, Orange, Orange, Yellow, Orange.
Monkey Head Crowd (PAL):
At the main menu, press Yellow, Yellow, Blue, Orange, Yellow, Yellow, Blue, Orange.
No HUD mode (PAL):
At the main menu, press Yellow, Yellow, Orange, Yellow, Yellow, Blue, Yellow, Yellow.
Eyeball Head Crowd (PAL):
At the main menu, press Yellow, Orange, Blue, Orange, Blue, Orange, Yellow.
Air Guitar (PAL):
At the main menu, press Blue, Yellow, Orange, Blue, Yellow, Yellow.
Hyper Speed (PAL):
At the main menu, press Yellow, Orange, Blue, Orange, Yellow, Orange, Blue, Orange.