At the Krusty Krab, SpongeBob discovers that Patrick has a famous relative named Patrick Revere who warned Bikini Bottom that man-eating mollusks are coming,yet no one listened to him. Mr. Krabs told the two of his great-grandpappy Krabs, who invented a painful security invention that hurts the fingers of anyone who touches the booby trapped dollar bill. While walking, SpongeBob runs into Sandy who revealed that she has a relative named Rosie Cheeks was the first squirrel to discover oil in Texas. Feeling sorry for SpongeBob, Sandy takes him to the library to "dig around his family tree". SpongeBob learns that he the great-great-great grandson of a Western hero, Sheriff SpongeBuck SquarePants. Sandy tells SpongeBob the story of SpongeBuck SquarePants. SpongeBuck arrived to a town named Dead Eye Gulch and goes to a theater/saloon named Krusty Kantina. SpongeBuck got to be a Sheriff by William Krabs (Mr. Krabs' ancestor). But then a villain Dead Eye Plankton arrived there and SpongeBuck had to face him at high noon (12:00 PM). SpongeBuck got kicked away and Pecos Patrick Star (Patrick's ancestor) met him. SpongeBuck got a nickname for him and it was Idiot Friend. Pecos Patrick told him to defeat Dead Eye Plankton by smacking him several times. When they got back to town (via a giant cactus that made SpongeBuck and Patrick's ancestor jump so high they landed in Dead Eye Gulch) SpongeBuck met Dead Eye Plankton and the two walked towards each other as though it was a Western duel. But he stepped on him. Like that, Dead Eye was defeated. Then, all the residents of Bikini Gulch built a golden statue of SpongeBuck (Squidward's ancestor liked his design better, which was him as a muscular man). SpongeBob soon realizes that the statue is really covered in jellyfish poop, hence the statue's different look. He cleans it up, which disgusts Sandy. After that, SpongeBob and Sandy walk away, while SpongeBob is saying that maybe someday people will know the name SpongeBob SquarePants. Then, in the epilogue SpongeBuck and Pecos Patrick sang a song called "Idiot Friends".
Towards the end of the episode, when Sandy tell SpongeBob to "keep dreaming", the light brown part of her head disappears.
When SpongeBuck and Dead Eye walk towards each other, they were a few feet away from each other, but the next clip they were still walking without reaching each other.
This episode aired in the Netherlands on April 9, 2008, 2 days earlier than in the United States.
The buildings in Dead Eye Gulch are constantly changing. The Krusty Kantina and the Bank are mostly the same, but some buildings change color throughout the episode. Also, the names of the stores are changing, too. For example, the "Dead Eye General Store" turned into "Dead Eye Boots".
The word "idiot" is prominent in this episode. According to the SpongeBob's Greatest Hits CD booklet, it was said seventeen times. It was used in the featured song, Idiot Friends.
The "Family Histories of Bikini Bottom" isn't written in English or, at least, doesn't appear to be, but Sandy could still read it. Sometimes it written with Cyrillic Alphabets (Russian language).
When SpongeBuck comes to Dead Eye Gulch and sits at the bar, he is somewhere in the middle, but later he is sitting at the end.
In the song about Dead Eye, Patrick's ancestor, Pecos, says he had pulled his pants down, but as Dead Eye returns, he rips off Pecos' clothing and he says, "Not again".
Many years before, in Dunces and Dragons Bikini Bottom was a huge kingdom. Here it is a tiny town. In Back to the Past it is a small village and in most episodes it is an average city. Also, in SB-129 it is a desolate land of nothing. Years later, Bikini Bottom is spread over a jungle in "Ugh". Overall, Bikini Bottom's size and location changes several times along with the population.
Hopalong calls SpongeBuck a "yokel". Yokel is a derogatory term for someone from a poor country or the rural areas.
Dead Eye's name may reference dead eye mode in Red Dead Redemption, a western shooting game. Its interesting to mention this because in Red Dead Redemption, dead eye mode shows the skill with weapons that the protagonist has, as Dead Eye Plankton has the ability to use a whip normally (It makes a cracking sound, as if swung hardly) considering how small the whip is, a theory, but interesting to talk about.
Nat Peterson has two ancestors shown in this episode: one that appears in a flashback where Patrick's ancestor, Patrick Revere, warns Bikini Bottom of the mollusks and the other while SpongeBuck entered the Krusty Kantina, his western ancestor is seen at far away corner from the stage and counter. Later, when SpongeBuck is approaching the counter, Nat's ancestor is seen near the center of the cantina.
Both of Patrick's ancestors in this episode are shown warning their town or what it was during their era that something is coming to town.
Hopalong seemed slightly surprised that SpongeBuck asked for milk but it is true that most of the drinks shown are milk containers.
After SpongeBuck stepped on Dead Eye Plankton, in the Krusty Kantina, Pecos Patrick Star and SpongeBuck are drinking milk. Patrick spills it on himself, and SpongeBuck has a milk mustache. But in the next scene showing them, the mustache is gone, while the milk on Pecos' shirt is still there.
Patrick Revere is a reference to Paul Revere.
Dead Eye Plankton is mentioned riding from the east. Oddly enough, his voice actor is from New Jersey.
It's hard to hear, but at the very end of the Idiot Friends song, about a quarter of a second before the episode ends, you can hear a fish yell "Help Me!" or something similar to that really fast.
The name Dead Eye Gulch may be a reference to the infamous gold rush town of deadwood which was popularized by the HBO show of the same name the Dead Eye Gulch also bears a strong resemblance to the actual town.
When SpongeBuck finishes drinking the milk in the beginning of the episode, one of his tooth is turned to yellow for a second.
This is the second special characters are shown dressing up. The first was Dunces and Dragons.
Archetypal Western references:
Town is strikingly close to a railroad
"High noon" duel (High noon is a term used in the frontier to refer to the time of day which the sun was at its peak and usually deviated from true noon... though not by much)
Newcomer named Sheriff in a haste
A cactus propelling someone miles away (an example of cartoon physics)
A pillow stuffed with a log
Dead Eye Plankton being able to scare the townspeople
Dead Eye (Bikini) Gulch has a clock (While clocks had been invented long before this episode takes place it was extremely rare to find any mechanical time keeper in the old west)
It is unknown how Dead Eye was capable of killing all of those sheriffs
When Pecos Patrick says, "...'Til one day a beast came ridin' from the east..." you can see the Dead Eye General Store witch means that the store was already named Dead Eye before Dead Eye Plankton arrived.
At the end of the episode with people stepping on Dead Eye, William Krabs and Polene Puff didn't sync up to their sentences.
In Bahasa Indonesia version, the epilogue is cut for unknown reason.
When this episode aired on November 30, 2011, it had the Rainbow S.r.l. logo due to a mistake on Nickelodeon's part.
When Plankton dances bubbles come out of his bottom meaning that he must have farted.
When Dead Eye Plankton Says "I love this town." In the Background you see the Dead Eye Bank and there is no clock.
The Dead Eye Gulch flashback story is similar to most wild west movies, especially the duel part.
Also Patrick Revere and the mollusk are a reference to Paul Revere and his midnight ride during the battle of Lexington and Concord, the first battle of the revolutionary war the mollusk being the British or as he called the regulars