Regular Show: Season 1

While Mordecai and Rigby are wrestling with a doll, they accidentally make a hole in the wall. Using a magical keyboard that can do whatever they want, the duo decide to convince their boss Benson to give them raises so they can hire someone to fix the hole. After this works, Rigby accidentally uses the keyboard to send his coworker Skips to the Moon. Mordecai, Rigby, Benson, and park owner Pops pile into a golf cart and use the keyboard to travel to the Moon to rescue Skips. There, the group fi

In the midst of a children's birthday party, the park groundskeepers are instructed by Benson to help prepare. In order to prove to him that they are competent, Mordecai and Rigby agree to set up the chairs but end up distracted when they find a set of arcade games while searching the missing remainder of them. When Rigby discovers an arcade game called "Destroyer of Worlds" that is in disrepair, he inadvertently causes its titular character to spawn in reality, whereupon it begins going on a ra

Mordecai and Rigby learn that a band named Fist Pump will be playing live at a concert venue named Slammers. Being Rigby's favorite band, Rigby attempts to persuade Mordecai to join him at the concert. Initially reluctant, Mordecai agrees to go after he learns that his crush Margaret will be in attendance. The duo manage to convince Benson to give them overtime to pay for tickets, but after learning that only V.I.P. tickets are available, the duo are assisted by a giant coffee bean and its trans

Rigby steals instructions from "Death Kwon Do" on how to perform a powerful punching move to beat Mordecai in Punchies, which he always loses. However, it backfires when Mordecai discovers his secret and uses a block move to counter the punch.Song: "You're the Best" by Joe Esposito

Developing a craving for cake, Mordecai and Rigby plan to throw a surprise birthday party for Skips so they can eat some at it, but realize their accident botches Skips' ritual to stay immortal.Guest voices: Robin Atkin Downes as Gary and David Kaye as the Guardians of Eternal Youth

Mordecai and Rigby become trapped in the park's meat locker while searching for some substitute hot dogs for the annual barbecue after the latter ignorantly wastes a pack recently purchased by Benson. They meet a group of anthropomorphic hot dogs who agree to help them, but soon reveal intentions of eating them instead to avenge their kind.Guest voice: Tim Curry as the leader of the anthropomorphic hot dogs, a visual gag on the actor’s roles as Dr Frank-N-Furter.

Mordecai and Rigby mistakenly eat Benson's grilled cheese sandwich, which had been instigated by the latter so he could get a rise out of him, and are sent out to get another one. They then compete to see who can lie better, which quickly gets them into more trouble with a pair of astronauts that they try to impress.Song: "Lies" by The Thompson TwinsGuest voices: Scott MacDonald as Major Williams, James Sie as Jimmy and B. J. Ward as Doctor Asinovskovich

Mordecai inadvertently attracts a group of delinquent unicorns after foolishly using a falsely-advertised cologne in an attempt to get Margaret's attention.

Mordecai and Rigby are sent back in time to 1982 after attempting to prank call their prank-calling idol, The Master Prank Caller.Guest voice: Tim Curry, who provides some of the Master Prank Caller's lines.

The park is under audit and Rigby's accountant brother Don, who is taller-in-size but younger-in-age, is called to help rescue it from financial ruin. Don proves to be very popular with the crew, much to Rigby's annoyance. His refusal to take in Don's "sugar" (a strong-hearted hug) drives him away and allows the audit to occur on schedule, forcing Rigby to reconcile his differences to his brother.Guest voice: Julian Dean as Don

When Rigby's body forces his consciousness out of itself following an overconsumption of junk food, Mordecai and Skips try to recover it before the change becomes permanent as a bodybuilder's consciousness becomes intent on claiming the body.Guest voice: Jeff Bennett as the bodybuilder

After Mordecai and Rigby foolishly pass themselves off as a real band, their future selves miraculously appear to help them out. However, they discover that it is a hoax, resulting in them ending the band and, it turn, causing their future selves to disappear.Song: "Party Tonight" by Sean Szeles, sung by MordecaiGuest voice: Paul F. Tompkins as the voice on Pops' "How To Be A Musician – with Sir Geoffrey" instructional records