Oni
Level skip
While playing a game, press Select. Highlight "Help", then press L2, L1, L2, Square, Circle, Square, L3, R3, L2, L1. If you entered the code correctly, you will hear a sound. Enter the code again to disable its effects.
Invincibility
While playing a game, press Select. Highlight "Help", then press L2, L1, L2, Square, Circle, Square, R3, L3, R3, Circle. If you entered the code correctly, you will hear a sound. Enter the code again to disable its effects.
Infinite Phase Cloak
While playing a game, press Select. Highlight "Help", then press L2, L1, L2, Square, Circle, Square, L1, R3, L2, L3. If you entered the code correctly, you will hear a sound. Enter the code again to disable its effects.
Gatling Guns mode
While playing a game, press Select. Highlight "Help", then press L2, L1, L2, Square, Circle, Square, L2(2), L1, L3. If you entered the code correctly, you will hear a sound. Most weapons will now fire without pausing, and all weapons will have infinite ammunition. Enter the code again to disable its effects.
Fists Of Legend mode
While playing a game, press Select. Highlight "Help", then press L2, L1, L2, Square, Circle, Square, R3, L3, Circle, Square. If you entered the code correctly, you will hear a sound. This mode makes enemies fly further when punched. Enter the code again to disable its effects.
One-hit kills
While playing a game, press Select. Highlight "Help", then press L2, L1, L2, Square, Circle, Square, L3, R3, Circle, Square. If you entered the code correctly, you will hear a sound. Konoko can now kill enemies with one hit. Enter the code again to disable its effects.
Character select
While playing a game, press Select. Highlight "Help", then press L2, L1, L2, Square, Circle, Square, L2(4). If you entered the code correctly, you will hear a sound. Keep pressing L2 to cycle through the characters available on the current level. Each has special moves different from Konoko, and is a remnant from the network/death match mode that was removed before the game's final release.
Tiny characters
While playing a game, press Select. Highlight "Help", then press L2, L1, L2, Square, Circle, Square, L3, R3, Square, Circle. If you entered the code correctly, you will hear a sound. Enter the code again to disable its effects.
Big characters
While playing a game, press Select. Highlight "Help", then press L2, L1, L2, Square, Circle, Square, R3, Square, Circle, L3. If you entered the code correctly, you will hear a sound. Enter the code again to disable its effects.
Big head
While playing a game, press Select. Highlight "Help", then press L2, L1, L2, Square, Circle, Square, Start, Square, Circle, Start. If you entered the code correctly, you will hear a sound. Enter the code again to disable its effects.
Avoid fall damage
When jumping off or falling from a high area, press L2 close to the ground to flip and not take any damage from the fall.