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Playstation 2 : Oanechan Blue, The Cheats

Below are the cheats, hints, and tips that Game Gas knows about for Oanechan Blue, The. On the right are websites that may have additional cheat codes, hints, or tips for Oanechan Blue, The.

Other Sites Cheats
Cheat Patch
Game Score
Cheat Mad
Jumbo Cheats
Game Winners


Misc. Unlockables
The Oneechanbara: Misc. Unlockables.

Unlockable:How to Unlock:
AyaFinish Stage 1 of 2-Sister Story
Aya Costume 2Clear 4 Quests
Aya Costume 3Clear 10 Quests
Aya Costume 4Clear all Blood Gates/Fill ??? Bar
Aya Costume 5Clear 2-Sister Story in BERSERK mode
Aya Costume 6Clear Futaba Story in EASY
EvaFinish 2-Sister Story in HARD mode
Eva Costume 2Finish Futaba Story in VIOLENT
Kiku and HanaComplete all Quests
MakotoFinish Stage 1 of Futaba Story
Reiko Costume 2Clear 6 Quests
Riho and Makoto Costume 2Finish Futaba Story in BERSERK
SakiFinish Stage 1 of 2-Sister Story
Saki Costume 2Clear 6 Quests
Saki Costume 3Complete All Quests
Saki Costume 4Finish 2-Sister Story in BERSERK mode
Saki Costume 5Finish 2-Sister Story in NORMAL mode
Saki Costume 6Press START button when choosing Saki
Wallpaper 1Clear 1 Quest
Wallpaper 2Clear 2 Quests
Wallpaper 3Finish 2-Sister Story in VIOLENT mode


Unlocks all the secrets in the game
Enter R3, L3, R2, L2, R1, L1, SQUARE, TRIANGLE, CIRCLE, X, R3, L3, R2, L2, R1, L1, SQUARE, TRIANGLE, CIRCLE, X quickly at the title screen with the 1P controller.