One Piece: Grand Battle Hints
PS2 | Submitted by Robert Kaler"Flaming Oni Giri" Attack
If you're playing this game as Roranoa Zolo, this attack will come in handy. It's not listed under the command chart, so you may want to print this page. If you've been hit by a bonfire, you can hold down the R1 button while you're on fire. Zolo will yell "Flaming Oni Giri!" and charge in the direction he's facing. When you do this, the flames will disappear after the attack is over. If you hit your opponent with this attack, it does some wicked damage to their Stamina Bar! Try it out in Training Mode first, because it's a little hard to do.
PS2 | Submitted by luffyzorosanjiWin Snow Minigame in Two Seconds
To win the snow shovel game in two seconds pick Nami as the character. Then use her whirlwind (o, x) twice and all the snow will disappear.
PS2 | Submitted by Sam LimpicMini Game Hints
1: Box Crusher- Hawk-Eye Mihawk is the best guy for this game
2: Breaking Krieg's Armor- Buggy the Clown is the best guy for this
3: Snow Shovel- Buggy the Clown is the best for this if you use his R Circle x combo "Chop Chop Buggy" to plow the snow
4: Usopp Race- As long as you use a support character when it gets overwhelming, you'll be good to go
5: Battle Bowl- Use the faster characters in the game (such as Kuro, Chopper, of Mihawk) to grab the chest before the other guy
One Piece: Grand Battle Cheats
PS2 | Submitted by Robert Kaler"Mr.0 Crocodile"
To unlock Mr.0, you must first unlock characters #'s 1-15, then input this code after beating story mode with Mrs. Sunday:
down, X, left, down, triangle, X, circle, square, up, circle, R1, left, triangle, right, square, R1
To do this, you may need to hold down the L1 button.
(NOTE: Mr. 0 has the abilities of the sand sand fruit.)
PS2 | Submitted by cannonrunnerMr. 2 Bon Clay
There are 2 ways to unlock Mr. 2 Bon Clay. The first way is after you unlock Mihawk, finish Story Mode with every available character on every difficulty setting (Easy, Normal, Hard, and Very Hard. Make sure you have at least 40 hours of accumulated gameplay at this time. Finally, beat Story Mode with Sanji on the Very Hard difficulty setting. Bon Clay appears as the final boss, and is selectable in Story Mode if you defeat him with you Secret Attack. Finish Story Mode with Bon Clay, and he becomes selectable in all other modes. The second way is easier. Beat Story Mode with Sanji on any difficulty level. During the ending credits, enter this code:
Hold L1 and press: X, X, Circle, X, Left, X, Circle, Square, X, Circle, Triangle, Circle, X, R1, R1, Left.
PS2 | Submitted by Thomas McDanielUnlock All Characters
At the start screen
Press: x up down left right circle square up x. You should hear Luffy say, "alright!"
PS2 | Submitted by GamesRadarChange Sanji's Secret Attack
If Sanji is fighting Nami or Miss Sunday (or it may just be Nami) if you perform his secret attack he says different stuff, and in the end, his eyes become hearts (if you kill them with the secret attack, the complete one, in the end he'll go "I wish we could've spent more time together," while hearts are floating around him.)
PS2 | Submitted by GamesRadarChange Appearence/Taunt
If, in a fight, you press one of the D-pad buttons, it will either change something about the character's appearence, or perform a taunt.
Luffy-take off his hat
Zolo-put on his bandana
Sanji-put on his sunglasses
Usopp-put on his goggles
PS2 | Submitted by Sam LimpicGum Gum Scythe Attack Add-Ons
To get extra attack add-ons for Luffy's Gum Gum Scythe Attack, when you use this attack you must have over four fruits. Then, when you attack, after your opponent hits the wall, press circle and you will hit your opponent in the air. Then keep pressing circle. Then you will do another add-on. You will hit them in the air. Then keep pressing circle. Then for the final attack add-on, you will hit them up again again Luffy will count down, 3 2 1. then he will yell and twist like a spiral and bounce up and smash your opponent throught the roof of the building. If you KO your opponent doing this trick you will see the building fall around Luffy, and he will say, " I'm gonna be King of the Pirates!" And you will win. Note: this trick works well with over four fruits and if your opponent health is down a little bit past halfway.
One Piece: Grand Battle Unlockables
PS2 | Submitted by GamesRadarRed-haired Shanks
Beat Story Mode with Luffy on the very hard setting.
PS2 | Submitted by GamesRadarStages
Maxim Stage - Clear Event Battle with Enel.
Groggy Ring - Win 3 events in Davy Back Fight mode 3 times.
Marine HQ stage - After unlocking EVERYONE complete their move lists in training mode and after doing so destroy all the pillars in the stage. Do this with every character to unlock the stage.
PS2 | Submitted by GamesRadarDavy Back Fight Minigame Unlockables
DBF = Davy back fight
DBF 4 times won Groggy Ring
DBF 10 times won Donut Race
DBF 18 times won Crash Rush Boxer (the box breaking)
DBF 26 times won Snow (getting rid of snow)
DBF 29 times won Breaking Krieg's Armor
DBF 34 times won The "Fix" sign
33 DBFs won + All support char's voices unlocked; and play DBF once more to Unlock Sanji & Zoro voice (announcing)
PS2 | Submitted by GamesRadarNew Title Screen
Unlock all the characters to reveal a new title screen that features everyone.
PS2 | Submitted by GamesRadarCharacters
Clear Event Battle with Zoro - Buggy
Clear Event Battle with Usopp - Kuro
Clear Event Battle with Sanji - Don Krieg
Clear Event Battle with Nami - Arlong
Clear Event Battle with Luffy - Smoker
Clear Event Battle with Chopper - Bon Clay
Clear Event Battle with Robin - Sir Crocodile
Clear Event Battle twice with Chopper - Foxy
PS2 | Submitted by GamesRadarUnlock new costumes for The Straw Hats
After unlocking Shanks and Mihawk, 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.
PS2 | Submitted by GamesRadarUnlock Very Hard Mode
Clear Hard mode in Event Battle with more than 10 Characters.
PS2 | Submitted by GamesRadarExtra Characters
Smoke - Successfully complete the game in event mode as Lufi, Nami, Zolo, Sanji, and Usop. Then use Lufi to complete event mode again.
Tashigi - Successfully complete the game in event mode as Lufi, Nami, Zolo, Sanji, and Usop. Then complete event mode again with each of those characters except Lufi
Aokiji - Clear 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 and beat Aokiji with a level 2 special to unlock Aokiji.
Enel - After clearing event battle with Luffy, Zoro, Nami, Usopp, Sanji, Chopper, and Robin complete some of there move lists in training mode. A picture should flash by of Enel challanging you, go to Grand Tours (tournament mode) and just play a regular tournament, one of the characters will be replaced with Enel, beat Enel and win the tournament to unlock Enel.
Shanks - Clear Event Battle with Luffy on the Very Hard difficulty after unlocking all previous characters including Enel and Aokiji.
Mihawk - Clear Event Battle with Zoro on Hardest difficulty. Beat Mihawk with Zoro's level 2 special after getting hit with Mihawk's level 2 special. You must unlock all other character before this including Enel, Aokiji, and Shanks.
Ms. Sunday (Nico Robin) - Beat normal with all characters, then beat it again with Kuro, or, beat normal with Kuro last.
Tony Tony Chopper - Beat hard with Nami, or beat hard mode with every character, then Nami.
Miss Wednesday - Press Square, Square, Triangle, X, X, Circle while the credits are rolling at the end of the game. A sound will confirm correct code entry.
Pandaman - Press Circle, Circle, X, Triangle, Triangle, Square while the credits are rolling at the end of the game. A sound will confirm correct code entry.
Mr. 2 Bon Clay - To unlock Mr. 2 bon clay, the following conditions must be met. Characters one thru fourteen must be unlocked - that is, the default characters plus four hidden characters, including Ms. Sunday, Tony tony chopper, Red Haired Shanks and Hawk - Eye Mihawk. Then, use Sanji in Story Mode (at any difficulty level) and enter this secret command while the ending credits are running:
Hold L1 and press X-X-O-X-LEFT-X-O-SQUARE-X-O-TRIANGLE-O-X-R1-R1-LEFT
note: the Mr. 2 Bon Clay code has been reported several different ways- there may be different codes for different versions of the game, but this is the one that has been submitted most frequently.