This page contains Sonic Advance 3 Unlockables for GameBoy Advance called "Sound test" and has been posted or updated on Jun 11, 2007 by Sparks30. Let us know what you think of this Unlockable by thumbs voting.
Beat the game. You do not need all the Chaos Emeralds. The "Sound Test" option will appear just above "Delete Game Data" in the options menu.
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