Bill's shadow following Dipper and Mabel.
Someone's watching you, Dipper.
Bill surrounded in light.
"Admit it, you missed me!"
Bill tips his hat off to Dipper.
Bill asks Dipper for a favor.
Bill earning Dipper's trust......
Bill holds his hand out to Dipper.
Bipper infiltrates their ranks.
But Mabel has a backup plan.
"I'm a being of pure energy with no weakness!"
Bill being ejected out of Dipper's body.
The tapestry of Bill in Northwest Manor, foreshadowing Weirdmagedon.
Bill entering Ford's dream.
"Well, well, well, well, well, well, well, well, well, well, well, well, well, well, well, well, well, well, well, well, well!"
Bill surrounding Ford with duplicates.
Bill revealing his true plans to Ford.
Bill searches for his next pawn.
Spoiler alert, it was Blendin!
Billden manipulating Mabel.
Billden shows Mabel what he wants.
Bill bringing about Weirdmaggedon and becoming more powerful than before.
It's the end of the world...
Black Bill over Gravity Falls as he unleashes Weirdmageddon.
Bill flies down to introduce himself to the townsfolk.
"Name's Bill! But you can call me your new lord and master for all of eternity!"
Bill introduces his friends.
Bill spawning bubbles of pure madness.
"This party never stops!"
Bill Cipher welcoming people to Weirdmageddon.
Even Manly Dan being afraid.
Bill as the Mystery Shack crew.
WELCOME TO GRAVITY FALLS.
Bill mockingly challenges Dipper to a fight.
"This is what happens to heroes in my world!"
Bill drives off with his friends.
GAME IS OVER, AND I WON. NOW IT'S TIME TO START THE FUN. I ALWAYS LOVE CORRUPTING LIVES. NOW LET'S SEE WHICH PINES SURVIVES.
Bill presents his new throne.
Bill taps on the weirdness barrier surrounding Gravity Falls, realizing he and his friends are trapped.
"This might be more complicated than I thought."
Bill showing off his multi-dimensional makeover.
Bill briefly touches on his past with Ford.
A scenario showing what would happen if Bill were to break free.
Bill Cipher raising his finger with malicious intent.
Attack of the 50,000 foot triangle.
Bill draws a smile over North America, killing millions of people.
Bill gets cocky as he prepares to torture Ford.
"WHAT?! I JUST FIXED THAT DOOR!"
Bill Cipher along with his Henchmaniacs.
Bill reveals to Ford that he'll torture Dipper and Mabel to break him.
"Let's get this over with."
Bill preparing to pulverize the Shack-a-tron with his bare fist.
Bill infuriated after realizing the Shack-a-tron is invulnerable to his attacks.
Bill gets his eye ripped out.
Bill gettin' his butt whooped...
... but gains a literal achilles heel.
"Hey, Gideon! Why aren't you dancing? Chop-chop!"
Bill laughs in amusement.
Bill captures Ford and Stan.
Bill possesses Wendy, Gideon, and McGucket.
Bill possesses Robbie, Soos, and Pacifica.
"This castle could use some DECORATIONS!"
Bill tells Ford he won't kill the twins if he lets him in his mind.
That's gonna hurt in the morning.
Bill getting completely incensed as Dipper and Mabel run for it.
"I've got some children I need to make into CORPSES!!" - Bill's demon form.
Demon Bill chases the twins.
Bill enraged and chasing the Pine siblings.
"Time's up, Ford. I've got the kids!"
"Eeny... Meeny... Miny..."
Bill in his astral form, preparing to enter "Ford's" mind.
"I gotta hand it to ya, Ford. You really know how to clear your m-"
Bill realizing he's in Stan's mind.
"WHAT?! The deal's off!!"
Bill realizes he's been trapped to die via mind erasure.
Stan taunts a horrified Bill over his oncoming death.
"Let me outta here! LET ME OU-"
"W-Why isn't this working?!"
Bill, terrified, pathetically begs Stanley for mercy.
"You're making a mistake! I'll give you anything: money, fame, riches, infinite power, your own galaxy! PLEASE!!!"
"What's HAPPENING TO ME?!!!"
"-EHT EKOVNI I, NRUB OT EMOC SAH EMIT YM"
"SSSTTTAAAANNNNNNNNNNNLLLLEEYYY---!!!!"
Bill Cipher's death at the hands of Stanley Pines.
"Oh, I know we'll meet again, some sunny day."