All Inventory Items Available At the item selection screen, hold R1 and press Left(2), Down(2), Square(2), Triangle, Circle. For the European/Australian PAL version, hold R1 and press Square(2), Triangle(2), Right(2), Up, Left at the item selection screen.
All Weapons At the item selection screen, hold L1 + R1 and press X, Triangle, Square, Triangle, Square, Circle. Then, release L1 and press L1 again.
Alternate Ayame Costume At the item selection screen, press Left(2), Down(2), Square(2), Triangle, Circle. Then the armor icon will automatically be selected. Now begin a game as Ayame and select her third costume. For the European/Australian PAL version, press Square(2), Triangle(2), Right(2), Up, Right at the item selection screen.
Alternate Costumes Select either Rickimaru or Ayame, then successfully complete any level without being spotted or killing innocent people. If done correctly, a "Grandmaster" screen will appear after the level is completed. To use the alternate costumes, start the next level. When the item screen appears, look to the far right. If the object that appeared on the "Grandmaster" screen is available, select it to give Rikimaru or Ayame a new set of clothes.
Carry Up To 99 Items At the item selection screen, hold L1 and press Left(2), Down(2), Square(2), Triangle, Square. For the European/Australian PAL version, hold R2 and press Square(2), Triangle(2), Right(2), Up, Down at the item selection screen.
Debug Mode Pause the game, then hold L1 + R2 and press Up, Triangle, Down, X, Left, Square, Right, Circle. Release L1 + R2 and press L1, R1, L2, R2. Wait a moment, then press Start followed by L2 + R2. A debug menu that allows invincibility, secret weapons, enemy summoning, toggle enemy AI, FMV sequence skip, and other effects will now appear. The following may also done with the debug menu:
Frame by frame
Enable any debug option, then pause the game and tap Select to move through the game frame by frame.
Two player mode
To set the game in two player mode, use the "Enemy" option to select any opponent. Then, select the "Pad-2" option to enable a second player. Keep moving away from the newly created player until a question mark appears near the health bar. Run back towards the newly created player. Both controllers may now be used to play the game in two player mode. Note: If either player leaves the screen, the second player will be cancelled.
Enable Japanese Voices Select a character, then at the next screen (mission select), hold L1 and press Left(2), Down(2), Square(2), Triangle, Circle. Note: Japanese voice effects will start after the first level; the narrative will remain in English. For the European/Australian PAL version, hold L1 and press Square(2), Triangle(2), Right(2), Up, Down at that screen.
Increase Item Inventory At the item selection screen, hold L2 and press Left(2), Down(2), Square(2), Triangle, X. Then, one more of each item will be available every time this code is entered. For the European/Australian PAL version, hold L2 and press Square(2), Triangle(2), Right(2), Up, Right at the item selection screen.
Layout Select Select a character, then at the next screen (mission select), hold R1 and press Left(2), Down(2), Square(2), Triangle, X. For the European/Australian PAL version, hold R1 and press Square(2), Triangle(2), Right(2), Up, Right at that screen.
Level Select Select a character, then at the next screen (mission select), hold R2 and press Left(2), Down(2), Square(2), Triangle, Square. For the European/Australian PAL version, hold R1 and Square(2), Triangle(2), Right(2), Up, Right at that screen.
Restore Health Pause the game and press Left(2), Down(2), Square(2), Triangle, Square. For the European/Australian PAL version, pause the game and press, press Square(2), Triangle(2), Right(2), Up, Left.
