Bill Cipher

Bill Cipher is the main antagonist of Gravity Falls, a Disney Channel animated series created by Alex Hirsch. Like several other characters he is voiced by Hirsch himself. Bill is an inter-dimensional, metaphysical demon who seeks to take over the "3D world", and mostly appears as a yellow triangle resembling the Illuminati symbol wearing a bow tie and top hat. Bill is very manipulative, and is shown offering deals to multiple characters to further his goals; furthermore, he also has the ability to shapeshift, alter reality, and enter the minds of people. The character made his official debut in Dreamscaperers, the penultimate episode of the first season; prior to this episode his existence is hinted at via background objects and drawings showing his likeness.

Bill's simple yet unique appearance, snappy humor, and the mystery surrounding his lore has made him arguably the most popular character from Gravity Falls. He first appeared in Mr. /co/lympus 2020, a tournament characterized by its massive amount of role-playing, and advanced to the second round by defeating the show's MC Dipper Pines but was eliminated by the #1 seed Samurai Jack. During his bout with Jack, Bill became involved as one of the villains in the "gay wedding" arc due his opponent being the groom of said marriage; he then used the power of Quads to banish all of its attendants to Hell. However, the triangular demon's effort was thwarted when a user playing Jerry Lewis from Totally Spies posted his own Quads to save everyone involved at the cost of his own life.

One month later, Bill paired up with the sharp-dressed Radio Demon Alastor to form the team Dapper Dealers, which was entered as a high-seeded competitor in plus4chan's Tag Team 2020. The pair reached the quarter-finals where they were overpowered by El Dorado's Mighty and Powerful Gods.

The triangular demon will next be eligible for Mr. /co/lympus 2021.

Results
Mr. /co/lympus 2020 - seed 64
 * R1: (65) Dipper Pines @ Gravity Falls 311 - 299 (49%)
 * R2: (1) Samurai Jack @ Samurai Jack 147 - 491 (23%)