CheatCodes.com has all the official One Piece: Grand Adventure PS2 cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Tuesday May 21, 2013 for One Piece: Grand Adventure are shown below. We also have this game on PlayStation 2, GameCube, and sometimes tricks from other game systems will also work on PlayStation 2.
When you go to Albasta you'll see a shipwreck - go there & fight Shanks, then go to the graveyard of ships fight Mihawk and win - he'll give you a compass that says Skypiea on it. Go to (to get to jaya island after u beet Mihawk go to in sore alabasta and fight Nico Robin) Jaya Island, then then go in the whirlpool - it will turn into a Waterspout & shoot you to Skypiea
Well first you go through at least Luffy and Crocodile's story modes to unlock Chaser's story mode. Then get Chaser to level 15, when he gets his secret attack, and then win with him in a battle.
Okay first beat Luffy's and Buggy's story mode. Then go back to Buggy's, and go to the map where the Baratie the Bistro of the Brine is located. Beat Johnny and Yosaku in the rumble battle, to access the duck race (your racing Trace). Win the race in 1 minute and 30 seconds to get Trace's grand compass. Then go to the Drum Island map, and fight Trace. Win the fight to get him on your crew, then use him in a fight to unlock him. (the cool thing is that instead of racing on a duck, Trace rides his boat)
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