第 3 季 共 39 集
播出时间：2011年9月20日
第 1 集 Stick Hockey
播出时间：2011年9月20日
Mordecai and Rigby are slacking off again, this time with a stick hockey table. Benson finds out and makes a deal with the two--if they finish all their work, they can play the game. However, when Benson goes against his word and sells it, Mordecai and Rigby must set out to retrieve it.
第 2 集 Bet to Be Blonde
播出时间：2011年9月27日
After losing a bet, Mordecai dyes his hair blonde and gets pulled into a shadowy blonde cult.
第 3 集 Skips Strikes
播出时间：2011年10月4日
The gang must get Skips to rejoin their bowling team, or face losing their souls to Death.
第 4 集 Terror Tales of the Park
播出时间：2011年10月11日
A three-part Halloween special in which terrifying tales are told. In "Creepy Doll", the guys discover an old doll that wants revenge on Pops. In "Death Metal Crash Pit", a pit is haunted by a 1980s death-metal band. In the last segment, "In the House", Mordecai dresses up as a father with five "kids", to receive more Halloween candy, while Rigby goes as a robber and scares away people.
第 5 集 Camping Can Be Cool
播出时间：2011年10月18日
Mordecai, Rigby, Margaret and Eileen head to the mountains for a camping trip in their "secret spot." Mordecai tries to prove to Margaret that camping is cool.
第 6 集 Slam Dunk
播出时间：2011年10月25日
Mordecai needs access to the computer so he and Rigby challenge Muscle Man and High Five Ghost to a basketball game for a week’s worth of computer time.
第 7 集 Cool Bikes
播出时间：2011年11月8日
After wrecking the cart, Benson takes it away from Mordecai and Rigby and replaces it with two bikes. The guys make a deal with Benson that if he admits they are cool, he'll give it back to them.
第 8 集 House Rules
播出时间：2011年11月15日
Mordecai and Rigby are tired of Benson's new laws for the house, so they try to find a new place to stay that is free from rules.
第 9 集 Rap It Up
播出时间：2011年11月22日
When Pops is humiliated by a bunch of rappers, Mordecai and Rigby attempt to teach him to rap instead of recite poetry.
第 10 集 Cruisin'
播出时间：2011年11月29日
Influenced by a movie trailer, Mordecai and Rigby believe that a cool car can get you girls, much to the disgust of Margaret and Eileen.
第 11 集 Under the Hood
播出时间：2011年12月13日
Mordecai and Rigby need to get rid of graffiti in the park.
第 12 集 Weekend at Benson's
播出时间：2012年1月17日
Mordecai and Rigby help Benson try to impress Audrey, but Chuck gets in the way of that.
第 13 集 Fortune Cookie
播出时间：2012年1月24日
Rigby swaps fortune cookies with Benson in hopes of improving his luck.
第 14 集 Think Positive
播出时间：2012年1月31日
Pops bans Benson from yelling at Mordecai and Rigby, causing Benson to have a major meltdown.
第 15 集 Skips vs. Technology
播出时间：2012年2月7日
Skips lacks computer skills and can't help Mordecai and Rigby master technology.
第 16 集 Butt Dial
播出时间：2012年2月14日
Mordecai accidentally calls Margaret and must find a way to erase the embarrassing message he left on her voicemail.
第 17 集 Eggscellent
播出时间：2012年2月28日
Mordecai tries to eat a large omelette in order to win a hat for Rigby.
第 18 集 Gut Model
播出时间：2012年3月6日
Muscle Man wants to be appreciated at the park so he threatens to leave and take a job as a gut model.
第 19 集 Video Game Wizards
播出时间：2012年3月27日
Mordecai and Rigby enter a video game tournament to win a prototype video game controller called “The Maximum Glove”.
第 20 集 Big Winner
播出时间：2012年4月3日
Mordecai and Rigby must tell Muscle Man that the scratch ticket they gave him was a fake.
第 21 集 The Best Burger in the World
播出时间：2012年4月10日
Mordecai and Rigby try to fool Benson so they can eat the best burgers in the world.
第 22 集 Replaced
播出时间：2012年4月17日
The guys fight for their jobs after Benson replaces them with an ostrich and a possum.
第 23 集 Trash Boat
播出时间：2012年4月24日
Rigby changes his name so that he can be cooler but quickly regrets his choice.
第 24 集 Fists of Justice
播出时间：2012年5月1日
Mordecai and Rigby do Skips work for his birthday, but Skips hurts his hand. He was supposed to fight someone, but with his hands injured, Mordecai and Rigby must fight the person themselves with the Fists of Justice.
第 25 集 Yes Dude Yes
播出时间：2012年5月8日
Mordecai thinks that Margaret is engaged, and he wants to find a girlfriend as soon as possible to try and get over her.
第 26 集 Busted Cart
播出时间：2012年5月15日
Mordecai and Rigby bust up the cart while doing stunts and have to go on a road trip with Benson to the dealership before the warranty expires.
第 27 集 Dead at Eight
播出时间：2012年5月29日
Death will spare Muscle Man’s life if Mordecai and Rigby babysit his kid.
第 28 集 Access Denied
播出时间：2012年6月5日
Margret plans a last minute party at a local club so that she can dance. The List becomes their mortal enemy in this episode.
第 29 集 Muscle Mentor
播出时间：2012年6月12日
After getting fired by Benson, Rigby goes into the mentor program and Muscle Man turns out to be his mentor, things don't go as planned.
第 30 集 Trucker Hall of Fame
播出时间：2012年6月19日
Muscle Man wants to spread his dad's ashes at the Big Rig Museum and needs Mordecai and Rigy's help getting there.
第 31 集 Out of Commission
播出时间：2012年6月26日
Mordecai and Rigby have one last day with the cart before they have to get rid of it.
第 32 集 Fancy Restaurant
播出时间：2012年7月17日
Muscle Man must learn to be a true gentleman in order to impress Starla's parents.
第 33 集 Diary
播出时间：2012年7月24日
After being asked by Margaret to water the plants, the duo discover a diary disaster down on the ground. They begin to repair it and make things worse. What secrets will be revealed in Margaret's Diary?
第 34 集 The Best VHS in the World
播出时间：2012年7月31日
Mordecai and Rigby have to return an overdue VHS to the store so they won't be banned from renting new movies.
第 35 集 Prankless
播出时间：2012年8月7日
The gang wants to win a prank war against a rival park.
第 36 集 Death Bear
播出时间：2012年8月14日
Mordecai and Rigby hope to impress Margaret and Eileen by taking a picture with Death Bear.
第 37 集 Fuzzy Dice
播出时间：2012年8月21日
Pop's Birthday is coming up so the gang decide that they will purchase the Fuzzy dice that Pops wants, but it turns out they can't purchase it. They have to win it.
第 38 集 Sugar Rush
播出时间：2012年8月28日
After Pops consumes a double glazed apple crisp, the gang must figure out a way to make Pops crash.
第 39 集 Bad Kiss
播出时间：2012年9月4日
Mordecai finally makes his move and tries to kiss Margaret.
