The following codes should be entered at the song select screen.

Effect	Code
Another (from Basic or SSR respectively)	Down, Down -or- Up, Up.
Basic (from Another)	Up, Up.
Flat	Left, Left, Left, Right, Right, Right.
Hidden	Up, Down, Up, Down.
Left	Left, Left, Left, Left, Left, Left, Left, Left.
Little	Left, Down, Right, Down, Left.
Mirror	Left, Right, Left Right, Left, Right, Left Right.
Right	Right, Right, Right, Right, Right, Right, Right, Right.
Shuffle	Up, Down, Left, Right, Up, Down, Right Left.
SSR (from Another)	Down, Down.
Stealth (from Sudden)	Up, Down, Up, Down.
Sudden (from Hidden)	Up, Down, Up, Down.