One Piece Unlockables
GameCube | Submitted by OnePieceFinaticUnlock 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.
GameCube | Submitted by OnePieceFinaticStages
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.
GameCube | Submitted by OnePieceFinaticExtra 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.
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 L and push A, A, X, A, left, A, X, B, A, X, Y, X, A, R, R, left
GameCube | Submitted by OnePieceFinaticUnlock Very Hard Mode
Clear Hard mode in Event Battle with more than 10 Characters.
GameCube | Submitted by OnePieceFinaticCharacters to Unlock
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
GameCube | Submitted by OnePieceFinaticNew Title Screen
Unlock all the characters to reveal a new title screen that features everyone.
Davy 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)
One Piece Hints
GameCube | Submitted by Sam LimpicChange 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
GameCube | Submitted by busman4jcStraw Hat Pirates Secret 4th costume
This is for the American version. First, go to the title screen then hold the R button while entering these codes. (If you mess up entering these codes press start then back to the title screen.) You"ll hear a ding if you entered correctly then release the R and view the costume. Make sure to press the buttons quickly!
Luffys 4th costume- Up ,X, Up, X ,B, A, A, Up
Namis 4th costume- Left, X, Left, X, Y, Y, B, Down
Zolos 4th costume- Down, X, Down, X, B, A, A, Y
Tony Tony Choppers 4th costume- Left, A, Right, X, Y ,Left, Right, B
GameCube | 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
GameCube | Submitted by Sam LimpicChange 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.)
GameCube | Submitted by OnePieceFinaticGum 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 Cheats
GBA | Submitted by RolfMonkey De Luffys Attacks
Gum Gum Rapid fire: All you do is press b 3 times.
Gum Gum Rocket: When near apole press r.
Gum Gum Grab: Press r near crates and you will grab them.
Gum Gum Bell: Just press b and press the control pad up.
Gum Gum Blast: Hold b and let go of b to release.
Gum Gum Whip: Press a to jump then press b.
GBA | Submitted by zatch manSpecial Gum-Gum Techniqes
To get gum-gum baloon you must get a score of 25,000,000. and to get gum-gum axe you must get a score of 65,000,000. You can use gum-gum ballon to attack enemies below you: when you're in the air press down and B at the same time. Gum-gum balloon will allow you to deflect bullets and hover to high places--just press up and B to deflect bullets and when in the air press up and B to hover.
GBA | Submitted by cannonrunnerObjects
Axe-hand Morgan Statue and Zolo's Stomach Band
Defeat captain Axe-hand Morgan.
Cat's Claw and Usopp's Slingshot
Defeat Captain Kuro.
Defeat Ritchie the Lion and Mohji.
In part one for Rougetown,get Sanji in your group and find Carmen. Talk to her to get the Elephant Tuna.
Gas Mask and Lollipop
Defeat Don Krieg.
When you get this item, you will be able to unlock all treasure chests. To get it,complete part two in Port Town once,then do it again and talk to Chouchou.
Hatchan's Octopus Trap
Open a treasure chest on a small ledge in Part two of Arlong park.
Map of the Grand Line and Special Buggy Ball
Defeat Buggy the Clown.
Defeat Saw-Tooth Arlong.
Get over 350,000,000 points.
GBA | Submitted by Onigiri823Defeating Buggy
Everytime you tried to attack him, he always dodges your attack, right? Here's a hint. Whenever Buggy does a Chop-Chop Harpoon (Hand Launcher) Do an aerial attack on him and do a Gum-Gum Rapid fire. When he does festival, don't chase after him. His body will attack you. When he get back to his own body, do the same attack or kick him when he is doing the buzzsaw. You get a buggy ball and a Gum-Gum Fruit which teaches you to learn Gum-Gum Balloon.