Dance Dance Revolution: 2nd Remix [PSX]

All songs
Highlight Arcade mode and press Start. Then, highlight any of the difficult settings and press Right, Right, Right, Right, Right, Right.

Another mode
At the game mode selection screen, press Down, Down.

Change on-screen characters
Hold Left or Right, then press Start.

Change playing style
Hold X then press Start.

Hidden mode
At the song selection screen, press Select, Up, Down, Up, Down, Up, Down, Up, Down.

Left mode
At the song selection screen, press Select, Left, Left, Left, Left, Left, Left, Left, Left.

Little mode
At the song selection screen, press Select, Left, Down, Right, Down, Left, Down, Right, Down, Up.

Maniac mode
Unlock Another mode, then press Down, Down at the game mode selection screen.

Mirror mode
At the song selection screen, press Select, Left, Right, Left, Right, Left, Right, Left.

Return to normal mode
Unlock Another mode or Maniac mode. Then, press Up, Up at the game mode selection screen.

Right mode
At the song selection screen, press Select, Right, Right, Right, Right, Right, Right, Right, Right.

Shuffle mode
At the song selection screen, press Select, Up, Down, Left, Right, Down, Up, Right, Left.

Super mode
Press Up, Up, Down, Down, Left, Right, Left, Right at the title screen.

Random Select in All Music and Event Mode.
To enable Random Song Select for All Music and Event Mode, play Random Select on the last round on Normal or Hard mode 20 times. The easiest way to do this is to go to Options and set Normal and Hard mode to have only 1 stage, then go to Arcade mode and pick Normal or Hard mode and pick random select everytime.

Step Battle in All Music and Event Mode.
Play Step Battle mode 10 times in Versus mode in Normal or Hard mode. To make this eaiser, just go to options and turn Normal or Hard mode to only 1 stage. Then go to Arcade (while holding the X button to pick Versus mode) and go to Normal or Hard mode. Play Step Battle 10 times, then you should have it in All Music and Event Mode (Versus mode only)