|"Mermaid Man and Barnacle Boy II"|
|Season 1, Episode 20B|
|Original air date:||April 8, 2000|
|Written by:|| Chuck Klein|
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|"Hooky"||"Your Shoe's Untied"|
Mermaid Man and Barnacle Boy II is the second segment of the twentieth episode of SpongeBob SquarePants, and also the last episode produced for the show's first season. It was also the last episode to use traditional cel animation. All episodes after this would use digital ink and paint.
SpongeBob is watching his favorite show, The Adventures of Mermaid Man and Barnacle Boy. He has entered a competition, and is listening eagerly to see if he's won the mystery prize. The announcer declares the winner as "SpringBoob SquirePin", for his life-sized Krabby Patty mannequins of Mermaid Man and Barnacle Boy. SpongeBob calls out that SpringBoob SquirePin stole his idea, before the announcer announces that he has made a "slight" error in pronunciation, and that the real winner is indeed SpongeBob SquarePants.
Within seconds, SpongeBob's prize is delivered to him. SpongeBob has won the "conch signal", a conch whose noise is a signal which Mermaid Man and Barnacle Boy respond to. SpongeBob blows it, and Mermaid Man and Barnacle Boy hear it from Shady Shoals, and spring into action. When they arrive at SpongeBob's house, they at first think that he has been disfigured before recognizing him. He explains to them that he won the Conch Signal in a contest, and that there is no danger. They then explain to him the importance of the signal, and tell him that he must only use it for major emergencies.
Later on, Mermaid Man and Barnacle Boy hear the conch once again, and rush to SpongeBob's house, where he appears to be dead on the floor. However, he then reveals that he simply is having trouble opening a jar of mayonnaise. Barnacle Boy is angered by this, but Mermaid Man reminds him that emergencies don't come around as often as they used to, and he tells SpongeBob that he can blow the conch "every once in a while." However, SpongeBob abuses this privilege, constantly calling Mermaid Man and Barnacle Boy to help with everyday tasks. Eventually, the two heroes are exhausted, and Barnacle Boy attempts to destroy the conch signal, but cannot bring himself to do so.
SpongeBob apologizes and explains that he just wanted to spend time with them. As a result, they let SpongeBob join them on their daily patrol, with SpongeBob dressed as a superhero. They do various activities, such as keeping lookout from on top of a tall building, and in the street, Mermaid Man and Barnacle Boy see an old man, who was once The Atomic Flounder. SpongeBob attacks the old man, not understanding that he is no longer a villain, and angered by this, the Atomic Flounder breathes fire in Barnacle Boy's face.
At a restaurant, Mermaid Man and Barnacle Boy ask SpongeBob to find their theme song on a jukebox. As he tries to find it, they decide to "ditch" SpongeBob. Outside, however, they are attacked and trapped by their arch nemesis, The Dirty Bubble. When SpongeBob finally finds the song, he comes outside to tell them, and sees their predicament. He asks the Dirty Bubble for his autograph, saying that he is his favorite supervillain, and "accidentally" pops the Dirty Bubble with a pencil tip, saving the day. The trio ride off in the Invisible Boatmobile, singing a Mermaid Man and Barnacle Boy-themed version of "Jingle Bells" as the episode ends.
Home video releases
- SpongeBob SquarePants: Anchors Away
- SpongeBob SquarePants: Lost at Sea
- SpongeBob SquarePants: The Complete 1st Season
- SpongeBob SquarePants: The First 100 Episodes
- The "Jingle Bells" song is a parody of a Batman and Robin-themed version of "Jingle Bells", of which Mermaid Man and Barnacle Boy are parodies of.
- When Mermaid Man tells SpongeBob that the conch signal is too much responsibility, the television in his house shows only a red screen, instead of black screen or a moving picture.
- This is the first appearance of the Mermalair.
- When Mermaid Man says "Activate torpedo mode!", regular closed captioning says "Torpedo mode!"
- Mermaid Man's belt is yellow in this episode rather than the regular purple.
- This is the only MM&BB episode not to have The Lineman as the title card music.
- The Atomic Flounder is the only villain shown to have aged.
- The Atomic Flounder's radioactive breath is a possible reference to Godzilla
- This is the final episode to be animated with cels.