Here are some cheats and tips for the game Dance Dance Revolution Club Version.
Hidden mode option:
Select arcade mode, then choose any difficulty setting. Press the Analog-stick in
any direction at the song selection screen, then press Up, Down, Up, Down, Up,
Down, Up, Down.
Mirror mode option:
Select arcade mode, then choose any difficulty setting. Press the Analog-stick in
any direction at the song selection screen, then press Left, Right, Left, Right,
Left, Right, Left, Right.
Little mode option:
Select arcade mode, then choose any difficulty setting. Press the Analog-stick in
any direction at the song selection screen, then press Left, Down, Right, Down,
Left, Down, Right, Down, Up.
Left mode:
Select arcade mode, then choose any difficulty setting. Press the Analog-stick in
any direction at the song selection screen, then press Left(8)
Right mode:
Select arcade mode, then choose any difficulty setting. Press the Analog-stick in
any direction at the song selection screen, then press Right(8).
Shuffle mode:
Select arcade mode, then choose any difficulty setting. Press the Analog-stick in
any direction at the song selection screen, then press Up, Down, Left, Right, Down,
Up, Right, Left.