Select "Options" at the main menu, then "Enter Code". Enter one of the following codes to activate the corresponding cheat function.

Function	How to unlock
Air Guitar loop pack	Enter brianmay as a code to unlock the Air Guitar loop pack for the Lead track.
Dog Waffle loop pack	Enter woofwoof as a code to unlock the Dog Waffle loop pack for the Drums track.
Ruckus loop pack	Enter pubfight as a code to unlock the Ruckus loop pack for the Drums track.