Mighty Friday Nights was a weekly event that started on April 2, 2021 and concluded on April 30, 2021. This event premiered Kamp Koral: SpongeBob's Under Years, new SpongeBob episodes from Season 12 and Season 13, as well as puppet versions of "Dying for Pie", "Wet Painters" and "Can You Spare a Dime?". They preceded premieres of new The Barbarian and the Troll episodes. On April 2, the "Jellyfishing in Bikini Bottom" marathon led up to the Kamp Koral premiere.
|Title card||#||Title||U.S. airdate||U.S. viewers|
|'||"Sugar Squeeze"||April 2, 2021|
|The campers meet two backwoods narwhals named Narlene and Nobby, who treat them to a sweet surprise.|
|'||"Tag, You're It"||April 2, 2021|
|On a rainy day, SpongeBob and his friends entertain themselves indoors with a turbulent game of tag.|
|265a||"Bubble Bass's Tab"||April 9, 2021|
|Bubble Bass doesn't pay his tab after ordering food at the Krusty Krab, so Mr. Krabs sends SpongeBob and Squidward to his house to try and make him pay.|
|265b||"Kooky Cooks"||April 9, 2021|
|After a disaster at a fancy restaurant, Mrs. Puff thinks Mr. Krabs is too cheap, so he hires SpongeBob and Squidward as waiters to impress her.|
|269a||"Under the Small Top"||April 16, 2021|
|Squidward's house becomes infested with a mail-order flea circus meant for SpongeBob.|
|269b||"Squidward's Sick Daze"||April 16, 2021|
|Squidward fakes being sick to get out of work, but his agony only begins when SpongeBob arrives to care for him.|
|'||"Dying for Pie: Puppet Edition!"||April 16, 2021|
|It's Employee Brotherhood Day at the Krusty Krab, and Squidward gifts a pie to SpongeBob; the Pineapple Playhouse presents "Dying For Pie," an episode in real life with puppets.|
|260a||"Knock Knock, Who's There?"||April 23, 2021|
|SpongeBob watches Mr. Krabs's house while he's away and goes to extreme measures to prevent burglary.|
|'||"Wet Painters: Puppet Edition!"||April 23, 2021|
|The Pineapple Playhouse presents "Wet Painters" in real life; SpongeBob and Patrick are tasked to paint the inside of Mr. Krabs' house.|
|264a||"Plankton's Intern"||April 30, 2021|
|Plankton needs help to steal the secret formula, so he hires an intern who knows more about Mr. Krabs than anyone else.|
|'||"Can You Spare a Dime?: Puppet Edition!"||April 30, 2021|
|Squidward is fired from the Krusty Krab after Mr. Krabs accuses him of stealing his very first dime; luckily his neighbor SpongeBob is there to take care of him.|
Schedule (April 2)
|5:45 pm||"Jellyfish Jam"|
|6:00 pm||"Jellyfish Hunter"|
|6:15 pm||"SpongeBob's Last Stand"|
|6:45 pm||"Planet of the Jellyfish"|
|7:00pm||"Sugar Squeeze"/"Tag, You're It" (NEW)|
- This is the first event with weekly premieres in the 2020s decade.
- "The Jellyfish Kid" was supposed to air in this event, despite being as the "first" of episode Kamp Koral. It was later replaced with "Sugar Squeeze" and "Tag, You're It."
- "Under the Small Top" and "Squidward's Sick Daze" are the only season 13 episodes to premiere in this event.
- Clips from "Patrick's Tantrum" were used in promos for "Plankton's Intern," despite not premiering in this event.
- All of the season 12 episodes in this premiere event were previously released on The Complete Twelfth Season DVD in the United States.
- This event continued in May and June of 2021, but the SpongeBob SquarePants episodes were replaced with new episodes of The Loud House and The Casagrandes, respectively.
- "Sugar Squeeze" and "Tag, You're It" are the highest-viewed episodes in this event with 0.71 million views; the lowest-viewed episode in this event is "Knock Knock, Who's There?" with 0.34 million views.
- The latter is also currently the lowest rated episode in the show's history.
- Even though Nick aired new episodes of The Loud House in this event, they mistakenly used the letterboxed ad for new episodes of SpongeBob SquarePants instead of that series.