Unicorns

Description
The Unicorns, appear in "The Unicorns Have Got to Go" after Mordecai puts on some cologne, which the unicorns are attracted to, called Dude Time. So far, they have always appeared in a group. During the episode, Rigby befriends them (due to his more mischievous nature and because he acts more like them), but the unicorns begin to abuse their "friendship" until he is inclined to get rid of them. They have also tied Benson up and gagged him and called him a nerd. The Unicorns seem to enjoy farting on people when they farted on Rigby several times. They frequently do a "bro out". Skips and Benson get rid of them by challenging them to a drag race with Mordecai and Rigby. After the Unicorns speed away, Skips activates a ramp, propelling the Unicorns into the sky. Benson presses a button on a remote, causing the Unicorns' drag racer to explode, killing them. Benson says calmly, "That's the only way to get rid of Unicorns."

They appeared again revived in "House Rules" when they started living in the Land of No Rules and saw Mordecai and Rigby who made their drag racer explode on them and also got told by the No Rules Man that they told him what to do and try to kill them for that. Then, they exploded again.

Appearance
There are eight white unicorns. Here is a list of the Unicorns and their appearances.
 * 1st Unicorn: This Unicorn has grey pants with a belt, and a netted punk shirt. All the Unicorns have horns, but this one also has a horn mohawk. And he also has two grey wristbands, 2 white shoes, and a blonde tail. This one appears to be the leader of all of the unicorns. According to the credits, his name is Billy. He resembles the punk rocker "Billy Idol".
 * 2nd Unicorn: This Unicorn has a shaved head, and has a grey rugged shirt. He also has a small brown beard, faded green baggy pants, black boots, and a brown tail. According to the credits, his name is Alex.
 * 3rd Unicorn: This Unicorn has a white mane, and is taller than the others. He has faded green baggy pants, a spiked collar, nipple piercings, black boots, and a black tail.
 * 4th Unicorn: This Unicorn has a stylish black hat, and a white buttoned dress shirt. He also has white tidy whities underwear, long brown hair, and a brown tail. He resembles a parody of Alex De Large from "A Clockwork Orange".
 * 5th Unicorn: This Unicorn has a green open shirt, and several necklaces. He also has spiked up black hair, black pants, red and white high top shoes, and a black tail.
 * 6th Unicorn: This Unicorn has very long brown hair, and a blue hat turned backwards. He also has long brown sideburns, a grey undershirt, tidy whities underwear, and a brown tail.
 * 7th Unicorn:This Unicorn has a bald head, with brown hair circling his outer part of his head, and a brown mustache. He also has a rugby shirt (colors are red and white), black boots, a brown tail, and grey overall pants. He resembles the comedian "Gallagher". This Unicorn was never blown up with the others.
 * 8th Unicorn: This Unicorn has a shaved head and has an orange open shirt, an orange kilt, a brown tail and black boots. This Unicorn was only blown up in " House Rules ".

Trivia

 * One of the Unicorns is a clear reference to the character Alex DeLarge, the main character of Stanely Kubrick's film A Clockwork Orange. Another Unicorn resembles the comedian Gallagher.
 * The Unicorns are most likely a reference to the stereotypical "Bro."
 * When The Unicorns explode, they seem to let off firework-like lights.
 * They are voiced by some of the main cast members of Regular Show; J.G. Quintel, Mark Hamill, and Sam Marin.
 * One of the Unicorns is named Jimmy, which is a very common name in Regular Show.
 * Mordecai becomes jealous over the Unicorns because they share Rigby's personality: crazy and party-loving. Rigby becomes jealous of the Blonde Men because they shares the same traits as Mordecai : cool and calm.
 * The unicorns are somewhat similar to Muscle Man personality-wise due to them repeatedy shouting out bro. They also farted on Rigby once, similar to Muscle Man farting on Thomas.
 * The Unicorns peed on Skips' lawn.
 * When they fart blue sparkles come out.
 * Surprisingly, they were not revived in Exit 9B by Garrett Bobby Ferguson Jr. like they were in House Rules.