One Piece - Grand Battle! Rush - Platform: Playstation 1

Very hard mode:
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Successfully complete event battle on the hard difficulty setting with more 
than ten characters to unlock the very hard difficulty setting.

Alternate costumes:
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Complete the following goals to unlock the corresponding costume for the 
indicated character.

Alternate costumes for The Straw Hats:
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After unlocking Shanks and Mihawk, successfully complete the entire move set 
for all The Straw Hat Pirates in training mode to unlock a third costume for 
them inspired by the Color Walk books.

Alternate title screen:
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Unlock all the characters to get a new title screen that features everyone.

Davy Back Fight mini-game unlockables:
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Win the Davy Back Fight min-game the indicated amount of times to unlock the 
corresponding bonus:

Groggy Ring: 4 times
Donut Race: 10 times
Crash Rush Boxer (the box breaking): 18 times
Snow (getting rid of snow): 26 times
Breaking Krieg's Armor: 29 times
Sanji & Zoro voice (announcing): 33 times; also need all support character 
voices unlocked
The "Fix" sign: 34 times

Marine HQ stage:
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After unlocking everyone, successfully complete their move lists in training 
mode. After doing so, destroy all the pillars in the stage. Do this with every 
character to unlock the stage.

Maxim stage:
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Successfully complete event battle with Enel to unlock the Maxim stage.

Play as Aokiji:
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Successfully complete event battle with Luffy, Zoro, Nami, Usopp, Sanji, 
Chopper, Robin, Buggy, Kuro, Krieg, Arlong, Smoker, Bon Clay, Crocodile, 
and Foxy. Then, play event battle again with Luffy. In the final stage you 
will battle Aokiji. To unlock Aokiji, you must use your level 2 special.

Play as Arlong:
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Successfully complete event battle with Nami to unlock Arlong.

Play as Bon Clay:
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Successfully complete event battle with Chopper to unlock Bon Clay.

Play as Buggy:
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Successfully complete event battle with Zoro to unlock Buggy.

Play as Crocodile:
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Successfully complete event battle with Robin to unlock Crocodile.

Play as Enel:
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After completing event battle with Luffy, Zoro, Nami, Usopp, Sanji, 
Chopper, and Robin, complete their move list in training mode. 
A picture should flash by of Enel challenging you. Then, play a regular 
tournament at Grand Tours (tournament mode). One of the character will be 
replaced with Enel. Defeat and win the tournament.

Play as Foxy:
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Successfully complete event battle with Chopper twice to unlock Foxy.

Play as Krieg:
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Successfully complete event battle with Sanji to unlock Krieg.

Play as Kuro:
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Successfully complete event battle with Usopp to unlock Kuro.

Play as Mihawk:
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Successfully complete event battle with Zoro on the very hard difficulty 
setting after Shanks has been unlocked. Defeat Mihawk with a level 2 special 
after getting hit with Mihawk's level 2 special to unlock him.

Play as Shanks:
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Successfully complete event battle with Luffy on the very hard difficulty 
setting after unlocking Aokiji and Enel to unlock Shanks.

Play as Smoker:
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Successfully complete event battle with Luffy to unlock Smoker.

Unlock Ace:
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Unlock Bon Clay and the third costumes for Luffy, Zorro, Nami, Usopp, Sanji, 
Chopper and Robin (by completing training mode with them), then successfully 
complete Event Battle as Smoker under the hard difficulty setting.

Unlock Bon Clay.
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Unlock Hina, then successfully complete Event Battle as Sanji under the hard 
difficulty setting.

Unlock Shanks:
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Unlock Ace, complete Event Battle under the hard difficulty setting as Luffy, 
Zorro, Nami, Usopp, Sanji, Chopper and Robin, and unlock the Windmill Village 
and Marine HQ stages. Then, successfully complete Event Battle as Luffy under 
the hard difficulty setting.