For all cheats, select Extras > Modify Game, then enter the following codes. All codes disable saving.

Unlock All Songs: Red, Yellow, Blue, Red x2, Blue x2, Red, Yellow, Blue

Venue Select: Blue, Orange x2, Blue, Yellow, Blue, Orange x2, Blue, Yellow

Stage Mode: Blue, Yellow, Red, Blue, Yellow, Red, Blue, Yellow, Red

Awesome Detection: Yellow, Blue, Orange, Yellow, Blue, Orange, Yellow, Blue, Orange

Performance Mode: Blue x2, Red x2, Yellow x2, Blue x2

Breakneck Speed: Orange, Yellow, Orange, Yellow, Blue, Orange x2, Blue