The following are known GameShark Codes for Dance Dance Revolution Konamix on Sony Playstation (PS1).
These codes were also known as Action Replay Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

• Quick Score Gain
  800C23F4 FFFF
• Maximum Score
  800C23F4 C9FF
  800C23F6 3B9A
• Dance Meter Full
  800C23EA 03FF