Pops is accepted to participate in a game show, but his attempts to get on set prove challenging in very unexpected ways.
Rigby changes his name and has to change it back when he realizes that he picked the stupidest name ever… "Trash Boat."
Mordecai and Rigby must save the park from being turned into a freeway after the rest of the gang are brainwashed. Meanwhile, Thomas gets a job at the park as an intern.
Mordecai and Rigby have to help Muscle Man get to the Big Rig Museum to spread his dad's ashes.
Before Margaret returns from a trip, the guys try to fix a lock on her diary.
Skips lacks computer skills and can't help Mordecai and Rigby master technology.
The guys want to get rid of a very large bird in the park.
When Benson tries out an ostrich and a possum as replacements for Mordecai and Rigby, they have to fight for their jobs.
Mordecai and Rigby want to get a picture in death bear's cage to impress Margaret and Eileen.
Mordecai and Rigby track down a mysterious graffiti artist whose been tagging the park.
Mordecai and Rigby have to get rid of the cart and want to have one last day with it to say goodbye.
Rigby must do one pull-up to pass the park's physical exam or else he will lose his job. When Rigby can't do a pull-up, Eileen trains Rigby to do a pull-up so he can pass and keep his job at the park.
When Skips' stress level gets critically high, he is ordered to take it easy for the sake of his health. But when Skips is unable to keep his stress under control, he and the rest of the gang must take a journey to the Himalayas so that Skips can ring the Stress Bell; this results in Skips and everybody else having to fight a Stress Monster in order to get rid of Skips' stress once and for all!moreless
Benson wants to prove that he performed a famous drum solo.
Everyone wants to give Pops some fuzzy dice for his birthday.
When Benson eats the sandwich of death wrong, he must eat the sandwich of life to save himself before he dies so it's up to Mordecai, Rigby and Sensai to save Benson by getting the sandwich of life.
Mordecai, Rigby, and Eileen want to throw a surprise party for Margaret so she can enjoy her Tuesday night to have fun. Benson tells how Mordecai, Rigby, and Elieen how it was impossible to clean a ballroom so they keep cleaning up discovering that there were ghosts who want to keep the ballroom messy in honor of their party. The ghosts said that if Mordecai, Rigby, and Eileen can prove that they can party harder than them then they will give them the ballroom to have the party.moreless
Muscle Man hopes to impress his girlfriend Starla's parents at a fancy dinner.
Mordecai, Rigby, Muscle Man and High Five Ghost have their guys' night out but Pops wants to be one of the guys and join the fun with them, so he must prove himself worthy by completing a milk challenge.
Mordecai and Rigby must save Christmas by destroying a gift for Santa Claus.
Muscle Man starts to go bald.
The guys want to win a prank war with a rival park.
The guys try to get a girl's phone number in order to win a bet with Margaret and Eileen.
Mordecai and Rigby try to win a prize on a Japanese game show.
Muscle Man tries to save his trailer after it fails a health inspection.
Margaret has asked Mordecai to make her a website, so he and Rigby proceed to use the computer, even though it's really Muscle Man's turn. However, Muscle Man has been playing basketball lately, and he challenges Mordecai and Rigby to a game, in which the winner gets full computer privileges.
Muscle Man wants to be appreciated at the park so he threatens to leave and take a job as a gut model.
Mordecai and Rigby have to tell Muscle Man that the million dollar scratcher ticket they gave him for his birthday is a fake without getting killed for it.
Mordecai wants a handshake from Margaret's father.
Mordecai and Rigby join a rap battle to defend Pops' honor.
Mordecai and Rigby have to pick up the donuts for the morning meeting.
The guys must return a video to the rental store.
Mordecai and Rigby sign up to be judges in a pie contest toavoid picking up trash, but find out that judging is a lot harder than it seems.
After being forced to sign off on Benson's new, incredibly strict, house rules, Mordecai and Rigby move out and try to find someplace to live on their own. Finally, they find a place in a pile of trash in an alley, where there are no rules, but they soon see that living without rules isn't as great as they thought it'd be.moreless
When Thomas overhears that Benson may have to fire Thomas as an Intern, Thomas becomes determined to prove that he is a valuable part of the park staff. Thomas immediately gets his chance when Benson's rival; Gene, steals a valuable statue from Benson's park! Thomas decides to infiltrate Gene's park as an intern for Gene's park, and locate the missing statue. Upon finding the statue, Thomas plans to signal his co-workers to let them know the perfect time to retrieve the stolen statue, in a daring all or nothing raid! Will Thomas' plan to save his Intern job work?moreless
Muscle Man accidently blew up all of the fireworks for the Fourth of July and has to find some before sundown which is when it starts.
The guys enter a donut contest in hopes of winning a cameo on their favorite cop show.
The guys must help Muscle Man stop fighting in his sleep.
Rigby has to prove that he can finish a job without quitting half way through, or he'll be fired.
While on their drive to a Halloween party, Mordecai and Rigby tells scary stories to Benson, Pops, Skips, Muscle Man, High Five Ghost and Thomas.
After Thomas has been hired, he goes through an inititation, involving pranks from Mordecai, Rigby, and the other park employees. The next day, though, Muscle Man goes further in pranking Thomas, much to the concern and annoyance of Mordecai and Rigby.
Regular Show presents three terrifying Halloween tales.
Creepy Doll: Mordecai and Rigby find an old Victorian doll named Percy, who wants to get revenge on Pops for neglecting him.
Death Metal Crash Pit: Muscle Man and High Five Ghost discover an abandoned RV, and want to crash it into a pit. However, they soon realize the RV is haunted by an '80s death metal band.
In the House: Rigby incurs the wrath of an evil wizard when he eggs his house on Halloween night.
Thomas chugs a slushy and freezes his brain.
Mordecai wants to ask Margaret to be his girlfriend.
The guys throw a Halloween party where they see who can tell the scariest story.
Mordecai and Rigby are charged with bringing Benson tortillas.
Mordecai and Rigby want to get into an exclusive hip club that Margaret is having her birthday party at.
Mordecai and Rigby accidentally ruin Thanksgiving and must find a way to save it before their families arrive for dinner. The gang pulls together to help make it the best Thanksgiving ever!
Mordecai and Rigby play rock-paper-scissors over a chair and tie 100 times, but it ends up summoning a tie-breaking monster.
Benson loses it when Pops tells him he can't yell at Mordecai and Rigby.
Mordecai and Rigby try to outfox Benson using holograms so that they can eat the best burgers in the world.
Mordecai and Rigby have to fix Benson's car before he finds out they broke it.
Mordecai and Rigby attempts to reunite the band Adrenaline to see them play live.
The park employees want to give Benson a special mug.
Mordecai and Rigby must save Benson from an evil party company.
After Mordecai, Margaret, Rigby, Eileen, Muscle Man, and Starla see a movie called "The Longest Weekend", Starla wanted to put their love to the test to see if she and Muscle Man can be apart all weekend long, and if Muscle Man can't go a whole weekend without her, then Starla will break up with him. Can Muscle Man go a whole weekend without Starla?moreless
Benson must trust Mordecai and Rigby to get him down a mountain.
Mordecai, Rigby, Muscle Man and Fives get burritos.
Muscle Man recounts how he first met High Five Ghost in high school, and how they eventually became best friends.