This page contains Sonic CD Codes for Sega CD called "Cloud change" and has been posted or updated on Aug 29, 2006 by shinobi458. Let us know what you think of this Code by thumbs voting.
Hold A and press Up, Down(4), Up at the title screen while "Press Start" is blinking. Use the D-pad on controller two to change the appearance of the clouds and other effects.
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