This page contains One Piece Unlockables for GameBoy Advance called "Sound Test" and has been posted or updated on Nov 5, 2006 by Jason. Let us know what you think of this Unlockable by thumbs voting.
To unlock the sound test in the options menu collect all the mini chests and then talk to gaimon in syrup village 2. (You must have completed the game and have the treasure key before you can pick them up)
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