Lava Lamp Shaped Creature is a character and an antagonist from Gravity Falls. He is a demon and a interdimensional criminal from an unknown dimension and one of Bill Cipher's friends.
It resembles a cylindrical lava lamp full of yellow liquid and orange bubbles. It has two dark orange and red lava blobs shaped like eyes and a large jagged opening under them that looks like a mouth. The top looks like a black bowler hat with a dark red band around it.
Eons before the events of the series, the lava lamp shaped creature indulged in criminal activities before being called together by Bill Cipher, along with 8 Ball, Amorphous Shape, Hectorgon, Keyhole, Kryptos, Paci-Fire, Pyronica, Teeth, and Xanthar.
The lava lamp shaped creature is first seen in "Weirdmageddon Part 1." The being is among Bill's friends the former takes them to the Fearamid. It is partying and playing "spin the person" when Time Baby and the Time Police interrupt their party. But Bill vaporizes Time Baby and his squadron. The party then continues as the creature and the other beings rejoice over Time Baby's presumed death.
In "Weirdmageddon 2: Escape From Reality", it is seen again dancing in the Fearamid, before Bill announces that they are taking "chaos worldwide."
Finally, in "Weirdmageddon 3: Take Back The Falls", it's sucked back by the portal along with the rest of the creatures from the Nightmare Realm.
- It is the only minion of Bill Cipher that isn't introduced.