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Mermaid Man and Barnacle Boy
Season 1, Episode 6a
Mermaid Man and Barnacle Boy.png
Air date August 21, 1999
Written by Paul Tibbitt
Mark O'Hare
Doug Lawrence
Episode guide
Home Sweet Pineapple

Mermaid Man and Barnacle Boy is a SpongeBob SquarePants episode from season one. In this episode, SpongeBob and Patrick learn that their heroes are retired.



Whilst pestering Squidward, SpongeBob and Patrick learn that their heroes, Mermaid Man and Barnacle Boy, are in fact living in the Shady Shoals underwater retirement home, and they try to bring the two (Mermaid Man and Barnacle Boy)out of retirement, much to the annoyance of the geriatric Bikini Bottom superheroes who only want their TV fixed. SpongeBob and Patrick go through all kinds of hilarious antics to reunite their superhero pals and eventually succeed, thereby creating Mermaid Man and Barnacle Boy's new show: The New Adventures of Mermaid Man and Barnacle Boy.

When Mermaid Man sits down, a comic book bubble appears and dramatizes the word "SIT!!". The phone gets broken, and when Mermaid Man hangs up the phone, the bubble appears again and says "HANG UP!". Will our heroes ever get their phone fixed? Tune in next week and find out. And when SpongeBob winks, a yellow bubble comes up and says "WINK!!!!"


Associated production music

The following is a list of music tracks used in the episode.


  • The ironic thing about this is that in most comic books, the dramatization of simple words usually comes in on action fighting scenes, but in this SpongeBob episode, it exaggerates the word dramatization.
  • When SpongeBob and Patrick are first asking the man at the front desk to see Mermaid Man and Barnacle Boy, an article on the inside of his newspaper reads, "School Drop Out Rate Soars".
  • Mermaid Man's belt is yellow in this episode.
  • When the receptionist bursts into the cafeteria, you can see something drop from his arm.
  • The old captain is played by the man who guards the gates at Nicktoons Studios in Burbank, CA.
  • There are various closed captioning errors in this episode.
  • When Mermaidman picks up the phone during the game of checkers. The ring tone is number 11 of the thirteen bad words in "Sailor Mouth".
  • This episode holds the eighth time SpongeBob cries.
  • 5th episode with its name in it.
  • 9th time Mr. Krabs doesn't appear.
  • When SpongeBob is thrown out of the Shady Shoals rest home with The Wedding March playing, it has become an internet fad with celebration music replacing the wedding march called "SpongeBob is kicked out of the [Whatever celebration the music is played for]".
  • This is the only episode in which the Mermalair is called the Sea Cave.
  • This is the first of the Mermaid Man and Barnacle Boy Series.
  • Mermaid Man and Barnacle Boy are parodies of both Aquaman and Aqualad and Batman and Robin.
  • This is the first episode to use music from the NFL, "The Lineman," which is the theme for most of the Mermaid Man and Barnacle Boy episodes.
  • This is the first appearance of Mermaid Man and Barnacle Boy.
  • The Adventures of Mermaid Man and Barnacle Boy is a parody of the Batman TV show from the 60s as well as that of Filmation's Aquaman animated series.
  • Mermaid Man's outfit is similar to Aquaman's outfit.
  • Barnacle Boy's outfit is similar to Aqualad's outfit.
  • Before SpongeBob and Patrick are watching TV, when Mermaid Man talks with Barnacle Boy, there were two Old Man Jenkins, Green and Blue.
  • This is the first episode where SpongeBob dresses up as a woman. The second time will be in Can You Spare a Dime? The third time in Rock-a-Bye Bivalve, and the fourth time in Love That Squid.
  • This is the fourth episode to use live action sequences.
  • This marks the first appearances of Mermaid Man, Old Men Jenkins, Dennis, Mary, Mrs. Shell, Lonnie, Sylvester, Richard, Mable, Other Residents and Shady Shoals Rest Home.
  • This episode mentions Man Ray, Although Man Ray wasn't seen until Mermaid Man and Barnacle Boy III.
  • During a tribute to Ernest Borginne, this episode was paired with Mermaid Man and Barnacle Boy II.
  • The title card pattern looks like Mermaid Man's pants.


  • When Patrick takes the doughnut from the box, it is orange, but when they "unite", it is replaced with the chocolate one which was left in the box. After that scene, it changes to the normal doughnut again.
  • After Patrick takes Spongebob's purse and peers out from behind the building, the purse is seen floating beside him.
  • Barnacle Boy puts the wrong ring on Mermaid Man's hand.
  • After Mermaid Man says the oath, both his and Barnacle Boy's rings disappear.
  • Mermaid Man illegally moves one of his checkers into a red space before the screen switches to "King Me!"
  • When Mermaid Man and Barnacle Boy say "Dogpaddle, away!" and start dog paddling, you can clearly see Mermaid Man's socks are missing. After, they return.
  • When Mermaid Man says "Up, up and away" while rocking, Barnacle Boy appears to be saying it too, but with no voice.
  • In this episode, the superheroes are revealed to have come out of retirement but in later episodes they seem to be still staying in Shady Shoals, such as in Night Light and Mermaid Man and Barnacle Boy VI: The Motion Picture.