At the Game mode selection menu, enter BLUE, ORANGE, YELLOW, YELLOW, YELLOW, BLUE, ORANGE.

At the Game mode selection menu, enter ORANGE, YELLOW, BLUE, BLUE, ORANGE, YELLOW, BLUE, BLUE.

At the Game mode selection menu, enter ORANGE, ORANGE, BLUE, YELLOW, ORANGE.

At the Game mode selection menu, enter YELLOW, BLUE, ORANGE, ORANGE, BLUE, BLUE, YELLOW, ORANGE.

At the Game mode selection menu, enter BLUE, ORANGE, YELLOW, BLUE, BLUE.

At the Game mode selection menu, enter BLUE, YELLOW, ORANGE, BLUE, YELLOW, ORANGE.

At the Game mode selection menu, enter YELLOW, ORANGE, BLUE, BLUE, ORANGE, YELLOW, YELLOW.

Finish Career Mode on Expert Difficulty.

You must finish every song with five star rating.

Use a rubberband along with three pennies to hold down the green fret on the guitar controller. You will find this makes the harder difficulties slightly easier. (UUnverified)

Go to the Options screen and watch all of the credits, and at the very end some extra, humorous sentences will appear. It's best to wait until the credits end completely and you return to the Options screen if you want to see all of the extra credits.