Season One

Season One is the first and premiere season of Regular Show. The series premiere, "The Power", aired on September 6, 2010, while the season finale, "Mordecai and the Rigbys", aired on November 22, 2010, with a total of 12 episodes aired this season.

Episodes

Season One
Title	Viewers (in millions)	Prod. code	Airdate
"The Power"	2.097	101	September 6, 2010
Rigby steals a magic keyboard from a preoccupied sorcerer. When Mordecai and Rigby accidentally make a hole in the wall while wrestling a stuffed animal, they use the keyboard to make Pops and Benson give them raises to try to pay for it. They then decide to instead use the magic keyboard to give them everything they want, though they accidentally send Skips to the moon with it along with other random items. They must now rescue Skips, while fleeing from a monster at the same time.
"Just Set Up the Chairs"	1.903	102	September 13, 2010
While preparing for a birthday party, Mordecai and Rigby are assigned to set up chairs, and the two try to get the job done to prove to Benson they are not slackers. But instead, they slack off as usual. In the process, they accidentally unleash an 8-bit demon from an old arcade game of the same name called the Destroyer of Worlds who tries to destroy the world.
"Caffeinated Concert Tickets"	1.715	103	September 20, 2010
Mordecai and Rigby work overtime in order to get tickets to a Fist Pump concert. While working, they drink lots of coffee to keep them active. When they run out of coffee, they agree to get some more with the help of a giant coffee bean and his translator (also interested in the concert), in exchange for tickets for them as well. Mordecai and Rigby buy tickets for themselves; but when they fail to buy tickets for the coffee bean and the translator, the two steal Mordecai and Rigby's tickets. Mordecai and Rigby race against them as they try to get the tickets back, and also to arrive at the concert on time.
"Death Punchies"	1.980	104	September 27, 2010
Tired of Mordecai always beating him at punchies and getting his way, Rigby decides to learn the martial art of "Death Kwon Do". He steals the instructions for the "Death Punch" and learns it, so Rigby decides to try out the move on unsuspecting people as he prepares for his revenge against Mordecai. Later, when Mordecai learns of Rigby's plan, he also decides to steal some Death Kwon Do moves in order to stop him.
"Free Cake"	2.095	105	October 4, 2010
Mordecai and Rigby try to seize an opportunity to eat a piece of cake, and it comes when they learn that Skips' birthday is coming soon. But on the night of his birthday, Skips secludes himself in a forest instead of going to his party. Mordecai and Rigby try to bring Skips to the party, but they interrupt him while he's doing a spiritual dance. As it turns out, Skips had made a pact with the "Guardians of Eternal Youth", who were giving Skips the gift of immortality as long as he performed the spirit dance every birthday. Now that Mordecai and Rigby had broken Skips' pact, the Guardians kidnap Skips and are about to kill him. Now, the two must rescue Skips.
"Meat Your Maker"	1.866	106	October 11, 2010
While everyone prepares for the park's annual barbecue, things go awry when Rigby accidentally burns Benson's hot dogs. Mordecai and Rigby search for more hot dogs in the freezer, but Rigby accidentally traps them inside and breaks the thermostat, causing Mordecai to go unconscious. Rigby carries Mordecai's body and finds more hot dogs (that are alive), and they help them escape from the freezer. However, the talking hot dogs reveal their real intentions: to eat everyone.
"Grilled Cheese Deluxe"	2.163	107	October 18, 2010
Mordecai and Rigby are assigned to get a grilled cheese sandwich for Benson while playing a game to see who is the better liar. Mordecai and Rigby pretend to be astronauts, and they even fool a pair of real astronauts and their coworkers. However, they soon get themselves involved in a serious problem: trying to prevent a sample of antimatter at a space center laboratory from destroying the city (while pretending to be antimatter experts).
"The Unicorns Have Got to Go"	2.417	108	October 25, 2010
Mordecai buys a new cologne to attract Margaret instead of hanging out with Rigby like he promised. But instead, the cologne attracts a gang of trouble-making unicorns. The unicorns "help" Mordecai attract Margaret, but only make him feel embarrassed so they can get a laugh out of it. At nighttime, the unicorns throw a party at the park, wrecking everything. Mordecai, Rigby, Benson, and Skips must then devise a plan to get rid of the unicorns.
"Prank Callers"	2.088	109	November 1, 2010
Mordecai and Rigby decide to make prank phone calls. They try to prank the Master Prank Caller numerous times, although they fail to fool him (and only make him increasingly annoyed). Eventually, he calls Mordecai and Rigby and sends them to 1982. Mordecai and Rigby must then engage in a battle of prank calls against the Master Prank Caller to send them back to the present.
"Don"	2.085	110	November 8, 2010
The park is about to be audited, with all of its property to be confiscated if the taxes are not paid. The park employees call Rigby's brother Don, a friendly accountant, to manage the taxes. Rigby is jealous of Don, whose likable personality takes the attention away from him. Rigby turns away Don, who is saddened and leaves. Rigby then tries to manage the audit himself, but he (having no knowledge of accountancy) does it incorrectly. The audit begins and the park starts to get deleted like a computer program. It's up to Mordecai and Rigby to try and bring Don back to stop the audit.
"Rigby's Body"	1.933	111	November 15, 2010
When Rigby eats too much junk food, his body forces out his consciousness. Rigby (now a disembodied consciousness) is aided by Mordecai and Skips as they set out on a quest to get Rigby back to his body before sunset, and also have to prevent a bodybuilder's disembodied consciousness from taking it.
"Mordecai and the Rigbys"	2.028	112	November 22, 2010
When Mordecai and Rigby order T-shirts for their non-existent band called Mordecai and the Rigbys, Margaret mistakes them for actual musicians. Mordecai, who wishes to impress Margaret, decides to go along with this misunderstanding by forming a real "Mordecai and the Rigbys" band. However, neither Mordecai nor Rigby have any idea how to play music. Later, Mordecai and Rigby's future selves (who became successful musicians) arrive. Future Mordecai and Rigby teach their present selves how to become musicians, but soon conflict is ignited when Present Mordecai and Rigby learn that they were duped into lip-syncing.