Regular Show season 2

Rigby becomes traumatized and fearful after he and Mordecai watch a vintage British horror film about a possessed taxi.

Guest voice: Paul F. Tompkins as the employee at the Movie Shack Hut video rental shop

Mordecai feels jealous when Rigby impresses Margaret for a date to see an upcoming film. Desperate to prevent this date from happening, he destroys all the clocks in the house by putting them into the microwave. In the process of the fight, Rigby is killed and Mordecai is introduced to Father Time, who takes him back to the beginning of the episode to fix what he did wrong.

Guest voice: Alan Sklar as Father Time

After Mordecai and Rigby write false information in the park's record book, it begins to affect reality.

Benson purchases a surveillance system to keep Mordecai and Rigby from constantly slacking off.

Guest voice: Richard McGonagle as Peeps

Pops has to prepare a speech at The Park to unveil the new park statue. Mordecai and Rigby try to help by making him go dizzy, but they have to go into his head to restore his confidence.

Guest voice: David Ogden Stiers as Mr. Maellard

Mordecai and Rigby fail to do another task, so Benson has Muscle Man and Hi-Five Ghost supervise them. Mordecai and Rigby hate having to put up with Muscle Man and Hi-Five Ghost, especially the former's "My Mom" jokes.

Song: "Nothin' but a Good Time" by Poison

Guest voices: Steven Blum as John and Tiny Lister as Bobby

Mordecai and Rigby try to earn respect by beating the world record on an arcade game. Once they do, they face off against the record's holder, Garret Bobby Ferguson.

Song: "Hangin' Tough" by New Kids on the Block

After their television set breaks down, Mordecai and Rigby try looking for a replacement to beat a difficult boss on a video game. Still, the boss soon becomes real by combining electronics, forcing the group to work together and defeat him by using the furniture.

Guest voice: Roger Craig Smith as Jimmy

When Benson takes the night off, Mordecai and Rigby decide to throw a party with the help of a hard-partying celebrity named Party Pete. Still, the celebrity takes the idea too far after an antique soda drink.

Guest voice: Jeff Bennett as Party Pete

When Mordecai accidentally sees Pops nude after he had taken a shower, Rigby, and later Skips, tries to help him forget about it.

Guest voice: Roger Craig Smith as the employee at the Movie Shack Hut

A new park manager replaces Benson after he gets demoted to working alongside Mordecai and Rigby, but this new manager is revealed to be a demon and causes everyone to transform into doppelgängers of her. Now it is up to Benson to save the day.

Guest voices: Steven Blum as Leon and April Stewart as Susan

Mordecai and Rigby try to get a refund on their role-playing game after realizing how bad it is, but the manager refuses to let this happen. This causes both sides to go to war to see who is right about the case, which prevails in a simulation of all in the board game.

Guest voice: Roger Craig Smith as the game store manager

Rigby struggles to get a repetitive song out of his head, which quickly turns into a problem for the whole group when it takes on a physical form.

Song: "Summertime Loving, Loving in the Summer (Time)" by Sean Szeles

Muscle Man becomes depressed when his girlfriend, Starla, breaks up with him, which causes Mordecai and Rigby to do his work for him. The duo have to find a way to bring Muscle Man and Starla back together.

Guest voice: Courtenay Taylor as Starla

Rigby hires a temp to do his work at the park but soon questions his decision when he learns of his devious ways and begins to steal Rigby's identity. When it reaches the boiling point, the group are stuck dealing with two Rigbys which they must put an end to by identifying the true faker.

Guest voice: Roger Craig Smith as Doug

Rigby falls victim to being jinxed by Mordecai and tries to remove it from himself but fails each time, until Muscle Man tells Rigby to do it in a mirror which unleashes a demon, raising the stakes and forcing Mordecai to unjinx him.

Guest voice: Roger Craig Smith as Ybgir

Mordecai and Rigby try to get to Muscle Man's surprise birthday party for Hi-Five Ghost after not being invited due to a choking incident but soon learn the truth about it after various attempts.

Guest voices: Roger Craig Smith as Low-Five Ghost and Tiny Lister as Bobby

Mordecai asks Rigby to go on a date with Eileen to double date with Mordecai and Margaret. Rigby agrees in exchange for Mordecai owing him ten favors, which he uses during the date to spoil Mordecai's moves towards Margaret, but it becomes deadly at the last favor.

Mordecai and Rigby accidentally wake the dead during a movie night in the park's cemetery and must protect the audience who believe they are watching "Zombie Apocalypse" in 3D.

Guest voices: Roger Craig Smith as the Movie Shack Hut employee and Jeff Bennett as the zombies and the zombie hunter

After accidentally injuring Pops’ back, Mordecai and Rigby sneak out of the house to go to a wrestling event they were initially going to attend with him. To their surprise, they find out that he has snuck out too and is mistaken for a wrestler at the event.

Guest voices: Lee Reherman as Four-Armageddon and Robin Atkin Downes as Huge Head

Skips cannot figure out how Rigby can beat him at arm wrestling and soon discovers the truth and unbelievably kills him. He has to beat the undead presence of Death in an arm-wrestling match to save Rigby's life.

Song: "Dies Irae" by Wolfgang Amadeus Mozart

Guest voice: Julian Holloway as Death

Mordecai, Rigby, Muscle Man, and Hi-Five Ghost enter a competition to win a car, but the host of the contest plans to keep them in it forever. The four have to try to escape before being iced into the future past year 4224.

Guest voices: Roger Craig Smith as The Night Owl, Nick, and Museum Voice

Baby ducks become attached to Rigby, and start imitating his behavior.

Rigby purchases a drink online that increases a person's intelligence to prove to Mordecai that he is more intelligent than him. Still, they both became too smart for their good.

In a prequel episode set on their first day at the park, Mordecai and Rigby compete against each other over Pops' old chair by playing rock-paper-scissors, but it is revealed to be an evil game when they tie 100 times in a row, spawning a portal-absorbing monster intent on eating the sofa.

Song: "I'm Alright" by Kenny Loggins

Guest voice: Roger L. Jackson as the portal-absorbing monster

Note: This episode is an extended version of the show's pilot episode, which was redone for this season.

Mordecai and Rigby compete against Muscle Man and Hi-Five Ghost to see who can make a viral video with the most views. Still, the duo eventually finds a strange place ruled by an evil computer warden.

Song: "Hit Me with Your Best Shot" by Pat Benatar

Guest voice: Mitzi McCall as the Warden of the Internet

Rigby starts transforming into a skunk after being sprayed by a mythical creature called the Were-Skunk and tries to return to normal before it is too late, but the Were-Skunk is determined to keep this from happening.

Guest voice: Paul F. Tompkins as the Were-Skunk

Mordecai and Rigby have to dispose of video-taped evidence of them insulting their friends at a karaoke bar while caught up in the excitement of performing there, but it proves to be very difficult when the group gets involved as well and the bar's manager is ignorant of their protests against playing it.

Songs: "We're Not Gonna Take It" by Twisted Sister and "Footloose" by Kenny Loggins

Guest voice: Richard McGonagle as Carrey O'Key