Unlock 2-Player Mode
Both players hold R1 + R2 + L1 + L2 at the 'Title' screen and the 2nd player then presses 'Start'. A sound will will confirm that the code has been entered correctly.

Unlock Arena Mode:
At the 'Menu' screen, select 'Special' and leave the cursor on the word 'Exit' and enter Square, L1, R2, Square, Left, L1, L2, L3, Right, Triangle.

Unlock Onimusha Arena:
Beat the game on 'Normal' mode and it will appear in the 'Special' menu on the 'Title' screen afterwards.


Unlock Street Fighter Costumes:
At the 'Menu' screen select 'Special' and leave the cursor on the word 'Exit' and enter the following codes to unlock the corresponding costume:

Unlock Tenkai Ken's Costume:
L3, L3, R3, R3, R3, Left, R2, L1, Square, Right

Unlock Ohatsu Chun-Li's Costume:
R3, Right, L2, Left, Left, R3, L1, R1, Right, R3

Unlock Jubei Cammy's Costume:
L2, L2, Right, Right, L3, Triangle, Left, L1, L2, Square

Unlock Roberto Guile's Costume:
R2, L2, Left, L1, Left, Right, R3, Square, Square, Triangle

Unlock Soki Ryu's Costume:
Left, Triangle, R2, R3, Square, R1, R1, Right, Left, L2


Unlock Street Fighter Costumes (PAL version)

Unlocks Roberto's Guile Costume:
Left, R3, Right, Left, R3, L1, L2, R1, Right, R3

Unlocks Soki's Ryu Costume:
R1, Square, R1, Left, Triangle, R2, R3, Right, Left, L2

Unlocks Jubei's Cammy Costume:
Square, L1, R1, R3, Left, Triangle, R1, Square, Triangle, L2

Unlocks Ohatsu's Chun-Li Costume:
L2, L2, L3, Triangle, Left, Right, Right, L1, L2, Square

Unlocks Tenkai's Ken Costume:
L2, R2, Left, Right, R3, Left, L1, Square, Square, Triangle


Unlock Street Fighter Costumes (Japanese Version)

1st Set of Secret Costumes:
Complete the Test of Valor for ALL

2nd Set of Secret Costumes:
Complete the Test of Valor with Gold Ranking for ALL

3rd Set of Clothing:
Beat the game with ALL 10 Oni Charms. Unlock Joke weapons
At the 'Menu' screen select 'Special' and leave the cursor on the word exit and enter the following codes to unlock the corresponding. When you start or load your next game the weapons will be in your inventory.

Unlock a Piggy Bank for Ohatsu:
Right, Triangle, Left, L3, L1, Triangle, Square, R2, Square, R2

Unlock Boxing Gloves for Roberto:
Triangle, R3, Triangle, Right, R1, L3, Triangle, L1, Right, L3

Unlock a Steel Pipe for Soki:
L2, Square, Triangle, R1, R1, R3, Left, Square, L1, Triangle

Unlocks a Microphone Stand for Tenkai:
R2, R3, Square, Left, Left, Right, L2, Left, R2, Left

Unlock a Racquet for Jubei:
L1, R1, Right, L2, Triangle, Right, L1, Right, L3, R1

Unlock Hard Mode:
Beat 'Normal' mode

Unlock 1st Set of Secret Costumes:
Complete ALL the Test of Valor

Unlock 2nd Set of Secret Costumes:
Complete ALL the Test of Valor with Gold Ranking for each