Unlock the Guitar Modes:
     Enter the following at the Mode Select screen:

Hidden: Red, Blue, Green, Blue, Red, Green
Fast Flow: Red, Green, Blue, Pick, Pick
Super Fast Flow: Red, Green, Blue, Pick, Pick, Red, Green, Blue, 
                  Pick, Pick
Random: Blue, Green, Green, Red, Green, Pick
Blank Screen: Red, Blue, Green, Blue, Red, Green, Red, Blue, Green, 
              Blue, Red, Green


Unlock the Hidden Modes:
     To activate the following modes you have to hit these drum sequences:

Mirror: Snare, Snare, High Tom, Low Tom, High Tom, Bass
Expert: Hi-Hat, Hi-Hat, Snare, Snare, High Tom, Low Tom, High Tom, Bass, Bass
Hidden: Low Tom, High Tom, Low Tom, High Tom, Low Tom, Bass
Speed Up: Hi-Hat, Snare, Hi-Hat, Hi-Hat, Snare, Hi-Hat, Bass.