|Mermaid Man and Barnacle Boy|
|Previous Episode:||Home Sweet Pineapple|
"Mermaid Man and Barnacle Boy" is an episode from Season 1.
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 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, by Barnacle Boy getting tired of them and calling other former superheroes, thereby creating Mermaid Man and Barnacle Boy's new show: The New Adventures of Mermaid Man and Barnacle Boy.
- Barnacle Boy was not the original sidekick of Mermaid Man. Originally, he was to hang out with an old coot named Barnacle Bill. Barnacle Bill, due to his marine mishaps, had a body made entirely out of driftwood. He also had flippers for arms and legs, wore a hat that looked similar to SpongeBob's Krusty Krab workhat, smoked through a wooden smoker (though he produced bubbles instead of smoke), and had a head that resembled that of the famous cartoon sailor Popeye. Stephen Hillenburg, though, couldn't find a use for Barnacle Bill, so he replaced him with Mermaid Man's current sidekick, Barnacle Boy.
- 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 "Dog paddle away!" and start dog paddling, you can clearly see Mermaid Man's socks are missing. After, they return when they dog paddle around SpongeBob and Patrick.
- 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 Increases and Global Ocean Warming". Soon the newspaper is gone.
- After SpongeBob takes his donut, there is a glazed donut and a chocolate-covered donut; Patrick takes the glazed donut, but soon Patrick's finger has the chocolate-covered donut when they unite.
- During the scene where Mermaid Man and Barnacle Boy are getting broccoli, there is clearly none in their cups; however, after Mermaid Man gets his, Barnacle Boy has three pieces (just like Mermaid Man) before getting an extra.