The Oanechanbara 2 cheats and cheat codes for Playstation 2

Unlock EXTRAS:
Go to the "Push Start Button" screen, and press 
Up, Down, Up, Down, L1, R1, L2, R2, L3, R3, Up, Down, Up, Down, L1, 
R1, L2, R2, L3, R3. Sound will confirm the code entry.
Go quest mode to unlock all secrets.

Unlockable items:
Play in story mode and complete the following tasks to unlock bonuses:

Hard mode: Finish stage 6 on the normal mode
Violent mode: Finish stage 6 on the hard mode
Berserker: Finish stage 6 on the hard violent mode

Wallpaper 2: Finish two quest mode missions
Wallpaper 3: Finish four quest mode missions
Cycle through wallpapers: 
Press L1, L2, R1, or R2 on the mode selection screen

Clothes 2: Finish six quest mode missions
Clothes 3: Finish eight quest mode missions
Clothes 4: Finish ten quest mode missions
Clothes 5: Fill the "????" meter
Clothes 6: Finish level six on the violent mode

Unlock Aya Clothes 2:
In story mode, finish 4 quest mode quests.

Unlock Aya Clothes 3:
In story mode, finish 10 quest mode quests.

Unlock Aya Clothes 5:
In story mode, clear stage six on berserk difficulty

Unlock Reiko clothes 2:
In story mode, finish 8 quest mode quests

Unlock Saki clothes 2:
In story mode, finish 6 quest mode quests.

Unlock Saki clothes 3:
In story mode, finish 12 quest mode quests.

Unlock Saki clothes 4:
In story mode, clear stage six on berserk difficulty

Unlock Eva:
In story mode, clear stage six on hard difficulty.