This page contains Sonic The Hedgehog Chaos Codes for Master System called "Sound Test Menu" and has been posted or updated on May 26, 2009 by JaseGamer.
- Developer: Sega
- Publisher: Sega
- Genre: Action Platformer
- Release: Feb 2, 2009
- ESRB: Everyone
Sound Test Menu
Press Down, Down, Up, Up, Left, Right, Left, Right, 1 at the title screen.
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