Dipper, Mabel and Soos go through Stan's mind to defeat a tricky demon summoned by Lil Gideon.
Did You Know?
David Lynch, director and creator of "Twin Peaks", one of the show's main influences, was offered the role of Bill Cipher. When Lynch turned it down, Alex Hirsch voiced Cipher using a bad impression of Lynch. See more
Fine. Get ready, guys. We're about to journey into the most horrifying, disturbing place any of us ever been: our uncle's mind.
SPOILER: During Weirdmageddon, the usual intro is replaced with Bill Cipher's own twisted version. The whisper at the end of the intro is retained but this time sounds like "I'm watching you nerds!" when played backwards, and of course is in Bill's voice. This quote is most likely a shoutout to the Gravity Falls fanbase from Alex Hirsch to them. See more