Dance Dance Revolution
Secret Level: Mirror Another & Maniac
Press Up at mode select, and enter the following:
Left, Right, Left, Right, Left, Right, Left, Right
Contributed By: KasketDarkfyre.
During the end credits after doing a set on Normal Set or Nonstop remix, you can move the spinning box on the lower left hand side of the screen. Just press a direction on the pad/controller and it will move.
Contributed By: Pure_Gamer.
Whilst at the title screen, select either arcade or arrange (APPEND) mode. Then, hold Left and press Start for a hidden set of characters. To unlock another set of characters, hold Right and press Start.
NOTE : Each game mode has its own set of hidden characters to use.
Contributed By: gloBal enemy.
Double, Unison, and Versus modes.
When you reach the mode select screen, highlight Game Mode and press circle instead of x. You'll then be given a play option menu to pick Single (standard one-player), Unison (two people on one set of color-coded arrows), Versus (standard two-player), or Double (one person on both pads at once)!
Contributed By: Xyton.
At the music selection press start and you'll see a box where you can play flat,hidden,little etc.
Contributed By: Joseph A..