Heres the full soundtrack that played during the final showdown with Bills Henchmaniacs and The Mystery Shack in Weirdmageddon İ: Take Back The Falls. Presenting a Rock/Metal version of the Gravity Falls Theme Song!\r
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I DO NOT OWN ANY AUDIO. ALL CREDITS GO TO BRAD BREECK AND DISNEY.\r
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Click here for the FULL score and a better version of this theme: