This page contains One Piece: Grand Battle Unlockables for Gamecube called "Marine HQ stage" and has been posted or updated on Nov 7, 2006 by pakelayergy. Let us know what you think of this Unlockable by thumbs voting.
Marine HQ stage
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.
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