Pause the game, then hold L1 + L2 and press Up, Down, Up, Down, Left, Right, Square. Note: This cannot be done in versus mode.
Increase sword hardness
Pause the game, then hold R1 + R2 and press Right(7), Left, Down, Up, Square. The main player's currently equipped sword will increase in hardness by one. Repeat as needed to reach the maximum hardness of five. Note: This cannot be done in versus mode.
Increase brightness
Hold R1 and rotate the Left Analog-stick several in either direction. Your character's eye will begin to flash and will illuminate your surroundings at night. This can also be done during intermission sequences.
Versus mode
At the title screen, hold L1 + R2 then press Right + Square to unlock versus mode.
All sword skills
Pause the game in versus mode, then hold R1 and press Left(2), Right(2), L1(2), L2(2), L1, Right, Left.
Change characters
Highlight the name entry prompt for the main player at the character selection screen, then press L1, R1, L2, R2, L2, R1, L1, Left(4), R2 + Square. Press Left or Right to choose a character.
