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Playstation - Dance Dance Revolution - 3rd Mix cheats

Unlock  SSR mode (Step Step Revolution):
Quickly press Left, Left, Left, Right, Right, Right, Left, Right at the 
title screen. 
or
Unlocking SSR mode during normal game play then press Select at the mode 
or title selection screens.

Unlock Remix mode:
Unlock SSR mode, then press Left, Left, Right, Right at the title screen. 
or
Unlock Remix mode during the normal game play, then press Select twice 
at the mode or the title selection screens.

Bonus music:
Play in diet mode for several times, then quit. New information should 
be appear. Repeat this to unlock even more music.