Enter the following in the Cheats menu under options. G = Green | R = Red | Y = Yellow | B = Blue | There is no need to strum these, unlike Guitar Hero 3.
|YRBGYRRR||Air Instruments (Cannot be combined with Invisible Rocker)|
|GGRRBBYY||Always Drum Fill|
|RGBYGYRR||Hyperspeed (Broken into HyperGuitar, HyperBass, and HyperDrum, and goes from Off to 5)|