Mermaid Man and Barnacle Boy (Miniseries of Episodes)

Mermaid Man and Barnacle Boy is the name of a miniseries of SpongeBob SquarePants episodes. The episodes usually feature the titular Mermaid Man and Barnacle Boy, SpongeBob’s favorite superheroes. The miniseries consisted of 10 MM&BB-focused episodes, plus two episodes focused on SpongeBob and Patrick as their MM&BB cosplay alter-egos, Mermaid Pants and Barnacle Star. A thirteenth episode in the miniseries was made for season 11, a fourteenth episode for The Patrick Star Show and a fifteenth episode for Kamp Koral: SpongeBob Under Years.

Episodes

Mermaid Man and Barnacle Boy

Seasons 1-7

#	Titlecard	Title	Airdate	Description	Screenshot
6		Mermaid Man and Barnacle Boy	August 21, 1999	Mermaid Man and Barnacle Boy are SpongeBob and Patrick’s favorite heroes. As SpongeBob hears that they are retired, he and Patrick want them to re-become super heroes and they try a lot of things for that.
20		Mermaid Man and Barnacle Boy II	March 3, 2001	SpongeBob wins a mystery item from The New Adventures of Mermaid Man and Barnacle Boy.
31		Mermaid Man and Barnacle Boy III	September 14, 2001	SpongeBob and Patrick are left in charge of the Mermalair with strict rules not to touch anything. But they have a question for Man Ray, who’s frozen in tartar sauce. SpongeBob unfreezes him with the promise that they’ll release him if he’s rehabilitated.
45		Mermaid Man and Barnacle Boy IV	January 21, 2002	SpongeBob shrinks Bikini Bottom with Mermaid Man’s Belt.
52		Mermaid Man and Barnacle Boy V	June 1, 2002	Barnacle Boy is being treated immaturely, so he decides to go on the dark side with the Dirty Bubble and Man Ray.
67		Mermaid Man and Barnacle Boy VI: The Motion Picture	October 7, 2005	After learning that Drippy Brothers Studios is making a Mermaid Man and Barnacle Boy movie with new actors, SpongeBob and Patrick decide to create their own Mermaid Man and Barnacle Boy movie. But things aren’t going as planned.
94		Mermaid Man vs SpongeBob	August 3, 2007	Plankton hypnotizes Mermaid Man and Barnacle Boy to attack the Krusty Krab.
135		Back to the Past	February 15, 2010	SpongeBob and Patrick mess up with time and get sent to a different Bikini Bottom, where Man Ray rules!
		The Bad Guy Club for Villains		SpongeBob and Patrick watch Mermaid Man and Barnacle Boy square off against evildoers.

Season 8

#	Titlecard	Title	Airdate	Written by	Description	Screenshot
163		Mermaid Man Begins	September 23, 2011	Casey Alexander Zeus Cervas Sean Charmatz Richard Pursel	We learn the origin story of the underwater superhero and his sidekick Barnacle Boy.

Season 11

#	Titlecard	Title	Airdate	Written by	Description	Screenshot
238		Appointment TV	October 28, 2018	Andrew Goodman	The long-lost episode of Mermaid Man and Barnacle Boy is finally showing on TV, but SpongeBob may not make it home in time to watch it.

The Patrick Star Show

#	Titlecard	Title	Airdate	Written by	Description	Screenshot
12		Super Sitters	April 10, 2023	Kaz	Patrick and SpongeBob go back in time to watch Mermaid Man and Barnacle Boy when they were new, but they end up going to when the characters themselves were new.

Mermaid Pants and Barnacle Star

#	Titlecard	Title	Airdate	Written by	Description	Screenshot
205		Mermaid Pants	October 29, 2016	Kaz	When SpongeBob and Patrick play Mermaid Man and Barnacle Boy, it’s all fun and games until their sworn enemies arrive.
219		Man Ray Returns	September 30, 2017		When Man Ray rents Squidward’s house for the weekend, it’s up to SpongeBob and Patrick to stop his evil vacation.

Kamp Koral

#	Titlecard	Title	Airdate	Written by	Description	Screenshot
30		Mermaid Men and Barnacle Boys	July 10, 2024 (Paramount+) March 7, 2025 (Nickelodeon)	Mike Bell	The Dinghy and Pontoon cabins go head-to-head in a series of superhero challenges.

Mermaid Man and Barnacle Boy

Episodes of SpongeBob: I • II • III • IV • V • VI: The Motion Picture • Night Light • Mermaid Man vs. SpongeBob • The Card • Ditchin’ • Shuffleboarding • SpongeBob’s Last Stand (non-speaking cameos) • Back to the Past • The Bad Guy Club for Villains • Mermaid Man Begins • Super Evil Aquatic Villain Team Up is Go! • Patrick-Man! • Mermaid Pants • Man Ray Returns • Appointment TV • Dirty Bubble Returns • Captain Pipsqueak • The Dirty Bubble Bass (Miniseries of episodes) Episodes of Kamp Koral: Mermaid Men and Barnacle Boys Episodes of TPSS: X Marks the Pot • Super Sitters Shorts: Back to the Past Shorts Characters: Dirty Bubble • Man Ray • Barnacle Man • Atomic Flounder • The Moth • Kelp Thing • Reflecto • Sinister Slug • Jumbo Shrimp • Robot Mantis • Every Villain Is Lemons • The Chief • Super Acquaintances • The Quickster • Elastic Waistband • Captain Magma • Miss Appear • Notodoris • Prawn Places: Mermalair • Shady Shoals • Hotel Evil • Locker of Memories • Time Machine Nickelodeon Magazine Comics: Mermaid Man Cleans Up • Hungry for Heroes The Adventures of Man Sponge and Boy Patrick Books: Goodness, Man Ray! • What Were You Shrinking? • E.V.I.L. vs. the I.J.L.S.A. Music: The Lineman • Mermaidman and Barnacle Boy Action Theme • The Adventures of Mermaid Man and Barnacle Boy Theme Song Vehicles: Invisible Boatmobile Other: The Mermaid Man and Barnacle Boy Book • Time Machine • Fiber • Tickle Belt • Mermaid Man and Barnacle Boy Fan Club • Magic Claw • Man Ray’s Power Glove • Mermerang • Dirty Bubble’s Bubble Launcher • Mermaid Man’s Belt • Mermaid Man and Barnacle Boy Bran Flakes • Breakfast Bites • Mermaid Man and Barnacle Boy Paddleball Set • Mermaid Man and Barnacle Boy Trading Card No. 54 • The Mermaid Man and Barnacle Boy Movie (Transcript) • Mermaid Man and Barnacle Boy Video • Mermaid Man and Barnacle Boy Fridge Magnet • Orb of Confusion • Mermaid Man Watch • Mermaid Man-a-Thon