Add A New Weapon 
     On  the  sword  inventory  screen, hold L1 + R1 and press CIRCLE,
DOWN,  DOWN,  UP,  UP,  DOWN, UP, CIRCLE. A noise will confirm correct
code  entry  a  random weapon will be added to your stock. This is for
the North American version of the game.

Add A New Weapon (PAL) 
     Pause  the  game  by  pressing  START,  hold  L2 + R1, then press
SQUARE, SQUARE, LEFT, LEFT, SQUARE, RIGHT, CIRCLE. A random new weapon
will be added to your stock.

All Skills In Versus Mode 
     In  Versus  mode, pause the game, hold R1, then press R2, R2, L1,
L1,  L2, L2, release R1, press R2. Note this is for the North American
Version of the game.

Increase Sword Durability 
     Pause the game and hold R1 and R2. Then press RIGHT, RIGHT, LEFT,
LEFT,  DOWN,  UP,  CIRCLE.  This  increases the durability of equipped
weapons by one point. The maximimum durability is still five (5).

Make Things Brighter 
     Press and hold L1 and L2, then move the left analog in a circular
direction.  Light  will  emit  from your character's eyes, even during
FMV, lightening the dark.
 
More Characters 
     On  the New Game screen, press L1, R1, R1, L2, L2, L2, R2, R2, R2
+ SQUARE.

Restore Health to Full 
     To restore your health to full in the story mode, go to the pause
menu.  Once  there, press and hold L1 + L2. Then press DOWN, UP, DOWN,
UP, RIGHT, LEFT, CIRCLE.
 
Unlock Battle Mode 
     On the title screen, hold L1 + R1, press CIRCLE + SQUARE.