This article is in need of cleanup in order to comply with Encyclopedia SpongeBobia's Manual of Style. Please help this Wiki by making this article clean and tidy!
| "I have my sources, oh wait, no I don't"
This article is in need of episode references to confirm its validity. Please help Encyclopedia SpongeBobia by adding sources.
SpongeBob SquarePants is a franchise noted for having little continuity. Some of the listed continuity errors may have explanations, while others remain a mystery.
Please note that these are errors of continuity. Other errors or goofs must be listed in the episode articles (depending on which episode).
Some episodes show that SpongeBob has bones, while in others he is boneless. Perhaps SpongeBob's species have soft or rubbery skeletons (like the cartilage skeletons of sharks), explaining why SpongeBob is still able to twist, expand, shrink, and change form of his body. In a similar case, some episodes show that SpongeBob is made entirely of sponge-like material. However, others show him being hollow, sometimes even having bones and internal organs. Some episodes include:
- "Squirrel Jokes" - SpongeBob can twist himself up, and even claims "I got no bones!"
- "Plankton!" - SpongeBob's brain is inside a spongy hollow area of his body. Plankton even stated "We are both invertebrates."
- "Scaredy Pants" - Patrick shaves away all of the layers of "flesh" to SpongeBob's brain, suggesting he has no skull.
- "The Chaperone" - During the song "Doing the Sponge," SpongeBob does a dance that takes advantage of his lack of bones, and can transform into a basketball. The other fish at the prom humorously break off their limbs and become tangled-up.
- "Mermaid Man and Barnacle Boy IV" - When the citizens of Bikini Bottom go into SpongeBob, bones, organs, and even veins/arteries are visible.
- "Prehibernation Week" - SpongeBob's bones break through his head from the impact of a fall.
- "Squid on Strike" - SpongeBob and Squidward's skeletons are shown at the end of the episode.
- "I Had an Accident" - SpongeBob's x-rays reveal that he has bones.
- "The Splinter" - When SpongeBob was trying to remove the splinter, his skin rips, showing his skeleton.
- "Rock-a-Bye Bivalve" - When SpongeBob used the elastic band, he is squishy with no bones.
- Numerous episodes show SpongeBob growing extra limbs and fingers on a whim and even eating them, suggesting he is an invertebrate.
- "No Weenies Allowed" - When SpongeBob was trying to bend his fingers, his fingers break, showing that he has bones.
- "Mrs. Puff, You're Fired" - SpongeBob walks into acid and his bones are shown.
- "Roller Cowards" - SpongeBob (with Patrick) break their spines. This episode shows that the fish get their spines broken after the ride. On the ride, SpongeBob and Patrick's skeletons fly out of their bodies.
- "Face Freeze!" - SpongeBob performs a variety of odd gestures that would be impossible to do with bones.
- "The Good Krabby Name" - SpongeBob and Patrick's skins are inhaled, and you can see their bones.
- "Slimy Dancing" - When the inside of SpongeBob is shown, he is completely hollow.
- "Squidward in Clarinetland" - When SpongeBob touches the dirty locker, Spiders eats away his arm, revealing the bones of his arm.
- "The Legend of Boo-Kini Bottom" - When SpongeBob gets frightened by the Flying Dutchman he rips out his skeleton and runs.
Possible explanation: SpongeBob has squishy and rubber bones.
- The video game Creature from the Krusty Krab has skeleton "costumes" for SpongeBob and Patrick.
- The PC version of The SpongeBob SquarePants Movie Game, SpongeBob states he doesn't have a spine.
There is fire underwater in several cases. Even Bikini Bottom has its own Fire Department. Some episode examples include:
- "Ugh" - The main plot of the episode is the discovery of fire.
- "Life of Crime" - Patrick questions the possibility of having a fire underwater.
- "Scaredy Pants" - Mr. Krabs brings in a fire while telling a scary story.
- "Boating School" - One of the obstacles in Mrs. Puff's Boating School is a ring made of fire.
- "Snowball Effect" - A snowball accidentally puts out Squidward's fire.
- "Patty Hype" and "Pet Sitter Pat" - A flamethrower is used.
- "Party Pooper Pants" - This is made fun of here, where the water dissolves Patchy the Pirate's note, and SpongeBob decides he doesn't understand some of the problems with living underwater. He then throws the note in the fire.
- "To Love a Patty" - SpongeBob cooks crepes, which catch on fire easily.
- "Wormy" - When Bikini Bottom is in chaos, some of the buildings are on fire.
- "Funny Pants" - When Patrick looks inside of SpongeBob's mouth, he claims it's too dark and lights a match.
- "The Fry Cook Games" - Harold holds an Olympic like Torch while running to a ceremonial braiser. When he is about to light it up, the fire on the ceremonial torch suddenly gets blown out. Harold, who is forced to run there again, catches on fire himself.
- "Nature Pants" - He accidentally starts a fire on the grill, and a fireman runs in and turns on the hose.
Possible explanation: The fire is actually acid.
Several episodes either depict Patrick as having the ability to smell or not. In the episode "No Nose Knows," Patrick has to get a nose stitched on his face to have a sense of smell. In "The Battle of Bikini Bottom," Patrick can grow a nose.
- "Something Smells" - Patrick is unable to smell SpongeBob's sundae.
- "Rock-a-Bye Bivalve" - Patrick smells that Junior has "got a stinky."
- "Wet Painters" - Patrick has a single nostril which is apparently full of nose hair.
- "That's No Lady" - In one instance in the Krusty Krab, Patrick is seen picking his nose while disguised as his female alter-ego, Patricia.
- "The Battle of Bikini Bottom" - SpongeBob says that Patrick doesn't even have a nose, but Patrick proves him wrong by taking his (rather realistic-looking) hand and picking his nose to threaten him with mucus.
- "No Nose Knows" - Patrick gets a nose and is able to smell.
- Related, in "The Fry Cook Games," SpongeBob explicitly states that Patrick doesn't have ears; despite this, he can hear.
- The same happenes in "No Nose Knows."
- "Don't Look Now" - Patrick pulled Squidward's fishing line with his nose.
- "The Ballad of Filthy Muck" - Patrick sniffs himself, implying he can smell.
Possible explanation: Patrick’s nostrils are very small, or perhaps even retracted. They could also filter out particular odors.
- "SpongeBob You're Fired" - There is a continuity error when Mr. Krabs says he was a "golden spatula fry cook" in the navy, even though he was the head chef on the S.S. Diarrhea in "Squilliam Returns."
Plankton's size varies by episode, and even varies within the episode too. He can range as small as around a grain of rice (as seen in "Plankton!" when Mr. Krabs had to use a magnifying glass to see him) to as large as King Neptune's Crown (as seen in The SpongeBob SquarePants Movie). What is consistent though is that he is large enough to fit into SpongeBob's hand (or at least most of the time).
- "Plankton!" - Plankton is shown to be the size of a grain of rice, or at least predicted to be. He was so small that Mr. Krabs had to use a magnifying glass to see him in full detail.
- "F.U.N." - Plankton is shown to be the size of a jellybean at one point.
- "Patrick SmartPants" - Plankton is small enough that Patrick can only see him through a microscope.
- "Sweet and Sour Squid" - Plankton is shown to be much larger when walking down the beach with Squidward.
Possible explanation: Plankton uses a shrink/grow ray off screen to change his size, depending on the situation.
Location of Krusty Krab and Chum Bucket
In several episodes, the locations of the Krusty Krab and the Chum Bucket vary. In some episodes, they are on the left past Patrick's house, but in other episodes, they are on the right past SpongeBob's house. In other episodes, they appear to be on a different road. In several episodes, the Chum Bucket appears to have a straight street that connects to the Krusty Krab. However, in other episodes, the street either appears to be longer or does not appear there at all.
- There are several episodes and scenes in episodes where the Krusty Krab appears but the Chum Bucket does not.
- In "Whale of a Birthday," the Bikini Bottom High School is across the Krusty Krab instead of the Chum Bucket.
Possible explanation: They have moved locations multiple times, possibly because of the constant destruction of the buildings.
Various bivalves have been featured in SpongeBob SquarePants. They usually take the place of birds or other animals. However, the way they are treated by the other characters varies between episodes, with no real explanation as to why.
- In "Help Wanted," "Suds," and "Valentine's Day," the clams take the role of songbirds or roosters.
- In "Tea at the Treedome," a giant clam attempts to eat SpongeBob, but is thwarted by Sandy.
- In "Opposite Day," SpongeBob claims that there has "a wild man-eating clam in the backyard!" while impersonating Squidward.
- In "Culture Shock," SpongeBob oddly suggests "Mouth-Full-of-Clams Day" as a way to bring customers to the Krusty Krab.
- In "Rock-a-Bye Bivalve," SpongeBob and Patrick actually take care of and nurture a baby clam. Initially, Patrick was going to "squish" the clam. Interestingly, in a gag, the clam eats part of Patrick's face.
- SpongeBob had a pet clam in a cage in the pilot, similar to a pet bird.
- In "The Smoking Peanut," Clamu, a parody of Shamu the whale, is treated as an animal in a zoo.
- A similar clam to Clamu appears in "Clams" as the lead antagonist, portrayed as similar to the shark from Jaws or the whale from Moby Dick. He also eats a majority of Mr. Krabs body as part of a supposed arrangement. Here, interestingly, instead of being on "land" he lives in the water.
- In "To Love a Patty," SpongeBob brutally destroys several clams, including snapping one in half. This could be a form of animal abuse when viewed in light of previous episodes.
Possible explanation: Clams are similar to dogs and dogs are used for millions of things in the real world.
Humans are shown in various episodes inconsistently.
- In "Hooky" and "Don't Look Now," it is revealed that the characters are aware of fishermen from the surface.
- The characters Mermaid Man and Barnacle Boy are never questioned about their species, and have lived in Bikini Bottom for a long time.
- Cast members such as Tom Kenny and Doug Lawrence have made cameo appearances in the show.
- In "Band Geeks," the main characters are brought to a football arena full of humans, and believe them to be "ugly fish."
- In "The Smoking Peanut," the Bikini Bottom News somehow has footage of humans across the globe reacting to Clamu's crying.
- Hans, a disembodied human hand, appears in several episodes, including "Suds" and "Imitation Krabs," as well as in the opening theme.
- In "The Graveyard Shift," Nosferatu, a humanoid vampire, is shown to live at the Krusty Krab and is identified by the characters.
- The diver from The SpongeBob SquarePants Movie is identified by the characters as a "Cyclops" rather than a human.
- In The SpongeBob Movie: Sponge Out of Water, SpongeBob seams surprised and shocked when he sees humans on the surface world.
- Oddly, when David Hasselhoff identifies himself, SpongeBob and Patrick accept it.
- In "Chimps Ahoy" and "I Had an Accident," the characters correctly identify other primates.
Possible explanation: The fish know about humans but usually never see them.
- SpongeBob and Patrick can be dumber or smarter in various episodes. This could be explainable because it depends on the activity.
- SpongeBob's strength fluctuates between episodes. In "Home Sweet Rubble," SpongeBob manages to lift the weight of a rotting room which had snapped two mops. While in "MuscleBob BuffPants," he couldn't even move a straw. This could be explained by SpongeBob getting stronger after completing Sandy's workout program.
- The Sinister Slug, Atomic Flounder, and Jumbo Shrimp look different in contrast to their appearances in "Mermaid Man and Barnacle Boy II" and "The Bad Guy Club for Villains." The superheroes of the I.J.L.S.A. have also changed (the Elastic Waistband and Miss Appear look different, Professor Magma replaced Captain Magma, and the Pi-Right Ponderer replaced the Quickster). Although, The Bad Guy Club for Villains was a lost episode of Mermaid Man and Barnacle Boy; so these changes may have occurred sometime before or after the I.J.L.S.A. that appeared in "Mermaid Man and Barnacle Boy V," appeared.
- In "Patty Hype," Patrick says he can't see his forehead, much like how actual humans cannot see their own forehead from eyesight view unless they use a mirror. However, Patrick is able to communicate to and look up at his own forehead in "Chum Bucket Supreme" and "SpongeBob You're Fired."
- Most episodes depicting SpongeBob as a baby show him as a smaller version of his adult form. However, in "Your Shoe's Untied," SpongeBob appears to have been inside an egg (with his legs poking out similar to Sheldon from US Acres). In "Gramma's Secret Recipe," baby SpongeBob appears as a blob. And in "Truth or Square," baby SpongeBob is already shown with his square shape inside his mother's womb. It is possible that SpongeBob went through many stages of birth.
- Scooter was somehow brought back to life after his death in "Bubble Buddy." The eponymous character took no action to save him. It is possible though that there is an identical fish of his highly related to him that appears after his death.
- In "Home Sweet Rubble," his house was revealed as an actual fruit. However, in "Opposite Day," it was shown as an elaborate building, complete with wood framework. This may be because the actual fruit is reinforced with the framework.
- SpongeBob's voice became higher-pitched in seasons 4 through 7.
- In "Atlantis SquarePantis," Plankton was trapped in Atlantis and used for their most prized possession. However, in all of the later episodes, he is back in Bikini Bottom. The Atlanteans might have become bored with Plankton and looked for something else to exhibit as their most prized artifact. Plankton may also have found a way to escape.
- The Krusty Krab has two stories: before it became a restaurant in "Krusty Krab Training Video," it was a retirement home, The Rusty Krab. However, in "Grandpappy the Pirate," it was a pirate ship. It is possible, though, that it was a pirate ship, and then the retirement home that Mr. Krabs brought.
- In the episode, "Pets or Pests," Larry the Lobster acted as if he did not know SpongeBob, though in many episodes, such as "Ripped Pants" and "SpongeGuard on Duty," Larry knows SpongeBob well. It cannot be confirmed if Larry forgot about SpongeBob, as Larry asked SpongeBob "Do I know you?" and SpongeBob responded "Probably not." before offering Larry a pet baby worm.
- Something similar like this happens in the episode "Ditchin'," where Mermaid Man and Barnacle Boy acted as if they do not know SpongeBob and Patrick; they were most likely too busy to notice. In earlier episodes, especially "Mermaid Man and Barnacle Boy III," the two heroes knew SpongeBob and Patrick well enough to have the two watch over their lair. In the second Mermaid Man and Barnacle Boy episode, after seeing SpongeBob again, Barnacle Boy responded, "It's that Sponge kid again."
- Sometimes in the series, characters who are injured are healed almost instantly. However, in "Blackened Sponge," SpongeBob keeps his black eye throughout the episode because the plot was about his black eye.
- Throughout the episodes, there is a form of discontinuity with supernatural characters. Sometimes, it is even between scenes in an episode. In some episodes, such as "The Curse Of Bikini Bottom ," ghosts go through everything and are not able to hold things. In that episode, when SpongeBob was a ghost, he was not able to hold his spatula for very long and fell through the ground when he tried to sleep on his bed. In other episodes, like "Séance Shméance," ghosts are able to hold things as well as eat things. In that episode, Rusty Rickets was able to make "food" out of real objects and his ghost costumers were able to eat the "food." In a few episodes, there is somewhat of a combination of the other two examples. For example, in "Ghost Host," a ghost was able to drive a motorcycle through a wall. This means that he was able to stay in place and go through things.
- Even though the technology seems to be advancing as the series goes on, there are several examples where technology should have reasonably advanced, but did not. The only notable case where this discrepancy is explained is in the episode "Krusty Krab Training Video", where the narrator makes an off-hand comment about Mr. Krabs being afraid of robot overloads and refusing to modernize the Krusty Krab. Otherwise, these discrepancies are never given a proper explanation. In "I Had an Accident," Patrick is playing on a Game Boy like device. In "The Great Patty Caper," when the episode goes forward 75 years, SpongeBob's grandson is playing on a similar device and not a device that is newer.
- In "Pressure" and "Rodeo Daze," the characters are realistic looking versions of the animal they're based on when they go on land. However, in The SpongeBob SquarePants Movie and it's sequel, The SpongeBob Movie: Sponge Out of Water, they remain their animated versions.
- Mr. Krabs' first dimes in "Can You Spare a Dime?" and "Mutiny on the Krusty" are different.
- In "Jellyfish Jam," when Squidward plays his clarinet, the Jellyfish go crazy, destroys SpongeBob's house and sting Squidward, but in the ending of "Squid Noir," the Jellyfish likes the music that is coming from his clarinet and even let him play at their restaurant, Jelly.
- The music Squidward plays on his clarinet is notably different between the episodes, so it's entirely possible that only certain tunes enrage the jellyfish.
- In "As Seen on TV," Mr. Krabs was airing the first Krusty Krab Commercial, despite the fact he aired one in "Truth or Square" a long time ago.
- An upcoming episode "Shell Games" will reveal that Patrick's house is actually a sea turtle who overslept. However, Patrick's rock was destroyed many times without any hint that it is actually a living creature.
Underground of The Krusty Krab
- The underground of The Krusty Krab has been known to change in many episodes.
- In some episodes, there are insects/other creatures that are not supposed to live underwater.
- In the episode Mermaid Man and Barnacle Boy IV, there are cockroaches.
- In "Squirrel Jokes," there is a cricket.
- In "Club SpongeBob," there is a small bug.
- In "Nasty Patty," there is a fly.
- In "Patty Hype," there is a spider.
- In "Company Picnic," there are two centipede-like bugs that looked like pens while in the form of a hologram.
- In "SpongeHenge", a spider is seen skittering around inside the cave.
- In "Have You Seen This Snail?", several spiders appear. They even seem to hatch from an egg sac.
- In "Ghost Host", The Flying Dutchman uses spiders as part of his attempts to scare SpongeBob/Squidward. In this case, they may simply be part of the Dutchman's supernatural powers and not real spiders, though.
- There are several instances in which characters are not supposed to know about certain bugs, but do anyway.
- In "Plankton's Army," Plankton turns into a cockroach and disguises himself as a cockroach.
- Mr. Krabs should not have known how to react to this, especially since he is afraid of sea urchins which are the cockroaches of the sea.
- Plankton should not have known enough about cockroaches to create a potion that turns him into one.
- In "Fear Of A Krabby Patty," Krabs calls Plankton a "spider bug".
- In "Plankton's Army," Plankton turns into a cockroach and disguises himself as a cockroach.
- "Neptune's Spatula" - King Neptune shows that he can use magic from his hands, but in the episode "Trident Trouble," he needs to use his trident.
The "you're fired" slip
- "SpongeBob You're Fired" - In other episodes, when SpongeBob (or Squidward or anyone else in Bikini Bottom for that matter) got fired, they never got a pink slip, but in this episode, when SpongeBob got fired by Mr. Krabs, he received one. Weenie Hut, Pizza Piehole, Taco Sombrero and Wet Noodle don't give out pink slips.
Land creatures underwater
- Sandy, the cricket, and the sea chicken need helmets to breathe underwater, but other characters, like the chicken from "Lost and Found," Roger, and Cuddle E. Hugs do not, although the latter can be explained by that Cuddle E. Hugs is not real and instead a product of the Bikini Bottomites' imaginations.
- "Doodle Dimension" - SpongeBob pulls the "magic" pencil out of his head, even though in "Frankendoodle," he and Patrick shot it back above the ocean, so he should not have it still.
- In "Treats!," Gary's full name is mentioned as "Gary Wilson Jr." However, as revealed in "Rule of Dumb," Gary's father's name is Sluggo and not "Gary Wilson Sr.", as it supposed to be. Furthermore, Sluggo is revealed to be a brother of Herb Star, Patrick's father, indicating that Sluggo's last name is "Star," and Gary's too. It is possible that Sluggo changed his name or Gary was named after another relative of his family.
Billy is a school bully of Plankton and Mr. Krabs from "Friend or Foe". However, in more episodes after this one he remains his age and didn't grew up like Mr. Krabs and Plankton. It is possible that the fish that appears in the episodes after "Friend or Foe" is a relative of his or just a fish that looks similar to him.
- Characters' homes, other buildings, and/or all of Bikini Bottom are destroyed in numerous episodes, such as "The Clash of Triton" and "Whelk Attack." They are presumably rebuilt after each episode.
- In "Texas," Sandy is homesick and had to take a bus back to Texas. Later it is revealed that she could just transport herself back and forth by rocket (as seen in "Pranks a Lot" and "Rodeo Daze"). This indicates that after the episode "Texas," she developed easier ways to return home.
- In "Fiasco!," Squidward is arrested for no reason, yet this is never explained in the future, maybe it is because they let him go as he didn't do anything.
- In "Little Yellow Book," Quincy takes Squidward's house away just because he read somebody else's diary (claiming that by reading it, he violated his loan). However, he had his house back in future episodes. This is probably because there is no rule against reading another's diary in a loan (really one of the only ways to violate it is to simply not pay it). Squidward might have taken action about this, and legally got it back. Or it is because cartoons have destruction revert to normal.
- Patrick says that he does not have a sister in "Something Smells." Later he does in "Big Sister Sam." Patrick most likely may have forgotten about her; considering his low intelligence and that he mentioned nobody knew about her because she was lost. In addition, in "Rule of Dumb," the royal family tree did not include his sister anywhere.
- In "Sandy, SpongeBob, and the Worm," Sandy ties her tail back together with rope after getting it back from the Alaskan Bull Worm (though this is hardly noticeable, so maybe her tail only seems to be in one piece in other episodes). It is also possible that Sandy had surgery to fix her wound.
- In "I Was a Teenage Gary," SpongeBob and Squidward are turned into snail-like creatures because Snail Plasma was accidentally injected into them. It could be presumed that the Purple Doctorfish gave them an antidote or the effects wore off after a few days.
- SpongeBob appears to be afraid of clowns in "Rodeo Daze" and "Tunnel of Glove." In earlier episodes, he liked clowns. Maybe SpongeBob either developed or got over his fear of clowns.
- Squidward moves out in "Stanley S. SquarePants," though he once again lives next door to SpongeBob and Patrick in future episodes. Squidward obviously moved back because he missed home or was unsatisfied with the location (like his previous move in "Squidville").
- In various episodes, the grill on which SpongeBob cooks patties sometimes faces toward Squidward, but in other episodes, the grill faces away from Squidward. This could occur due to the Krusty Krab continuously being rebuilt, and thus the grill's location varies; or it could be for comedic effect. (Such as "Your Shoe's Untied" when SpongeBob shuffles slowly to Squidward)
- SpongeBob, Squidward, Sandy, Patrick, Mr. Krabs, Pearl, Mrs. Puff, and Larry are merged in "SquidBob TentaclePants;" it is unknown how they were separated. It is assumed that they could be separated when the effect may have worn off.
- The whole town of Bikini Bottom is shrunken in "Mermaid Man and Barnacle Boy IV," but is back to normal in later episodes. Perhaps the effect wore off and everyone returned to his or her normal sizes. Another explanation could be the Kelp Grow, seen in "Giant Squidward" to return Bikini Bottom to normal size. Also, it probably was that SpongeBob shrunk the whole town to have everything an even size.
- In "Shuffleboarding," Man Ray's head is shrunken, but is back to normal in later episodes. It had either worn off or regrown by an anti-shrink device.
- In "Growth Spout," Pearl grows larger, but appears to be back to her normal size in later episodes. Her size probably retracted.
- In "Wishing You Well," Plankton grows to a huge size and Mr. Krabs is turned into a steamed dinner. However, it is assumed that SpongeBob wished those back to normal. ("Breath of Fresh Squidward")
- In "SpongeBob SquarePants vs. The Big One," The Flying Dutchman calls Mr. Krabs "some guy he's never seen before" despite seeing him multiple times before. There are a number of explanations for this.
- The Flying Dutchman, being centuries old, possibly does not have a good memory.
- Mr. Krabs grew a beard, so the Flying Dutchman may not have recognized him at first. This is notable because he later tells Mr. Krabs that he dated his aunt at high school.
- This episode may have taken place before those episodes.
- In "The Curse of Bikini Bottom," the Flying Dutchman turns SpongeBob and Patrick into ghosts for shaving off his beard, telling them that the curse will wear off when his beard grows back, and that it takes a thousand years for his beard to grow back. However, several months later, the Flying Dutchman already has a fully-grown beard and SpongeBob and Patrick are back to normal. The curse was probably taken away.
- In some episodes, Mr. Krabs office door has a window, but in other episodes, there are no windows. Of course, the Krusty Krab is continually rebuilt due to destruction, so the placement of doors and windows will vary.
- In some episodes, Patrick's house has rooms and furniture. In others, it is just a hole under a rock. Sometimes, it is nothing more than the rock itself. Sometimes, Patrick has actual furniture, but in other episodes, his furniture is made of sand. However, Patrick can quickly renovate his home (as seen in "I'm with Stupid").
- It is unknown how SpongeBob and friends were able to escape the void at the end of "Ghoul Fools." It is most likely that the Flying Dutchman or another ghoul used their powers to get them out or it was a bad dream SpongeBob had.
- Characters sometimes enter other character's homes. This may be because they leave their doors unlocked. This, however, makes them victims of thieves and robbers. In some episodes, people use keys (in "Growth Spout," Mr. Krabs uses his nose to pick Squidward's lock) and have locked doors.
- In the episode "Face Freeze!," it is unknown how the characters get back to their normal faces. It is possible that they were not permanent, as Mr. Krabs said.
- In "The Camping Episode," Patrick is left handed, but in "You Don't Know Sponge," he is right handed. It is possible he is ambidextrous.
- Patchy the Pirate lost his entire body in an explosion in "Party Pooper Pants," leaving only his head. However, this is not the case in his future appearances. He was most likely stitched back together in the hospital.
- King Neptune's physical appearance in the show is different between his physical appearance in the movie. This could be because they are different people as Squidward did mention in "Krusty Towers" that there is a King Neptune XIV showing that they might be different people in the royal family.
- In the movie, Neptune's daughter Mindy was her father's heir to the throne. However, in "The Clash of Triton," his son Triton is. It is most likely the explanation for this is that the King Neptune from the movie and Neptune from the series are different people, and henceforth Mindy and Triton are not siblings, and both are probably only children (hence they are the only ones who can take the throne after their fathers).
- The bathroom inside the Krusty Krab has been shown changing very frequently. Sometimes there are only 2 bathroom stalls and other times there are more than 2 stalls. Sometimes there are urinals and other times there are no urinals. This can explained by Mr. Krabs making renovations to the Krusty Krab bathroom off-screen as it's his restaurant.
- In the video game SpongeBob SquarePants featuring Nicktoons: Globs of Doom, Mr. Krabs' mattress is seen even though he supposedly took it back home after "The Lost Mattress." Although this could have been someone else's mattress, but it is unlikely because it had money in it and most people do not put their money in a mattress.
- In one episode, SpongeBob did not know how to say "Cephalopod," but in a later episode, he did. He may have learned how to say it correctly.
- In "Pest of the West," Jellyfish appear floating around a pooped on statue. This implies that they are the pigeons of the ocean, but other episodes show that scallops are the birds of the ocean. Therefore, scallops should have pooped on the statue, not jellyfish. Although, this it is not directly stated or implied that the jellyfish are supposed to be birds in this episode.
- In the earlier episodes, there is no back door in the Krusty Krab, but in the later episodes, there is. This could be explained by the destruction and rebuilding of the Krusty Krab.
- In some episodes, Mr. Krabs barely pays SpongeBob, such as in "Big Pink Loser," he states that when he started working at the Krusty Krab, he had to pay Mr. Krabs $100 an hour. However, in some episodes such as "Kracked Krabs," SpongeBob appears with large amounts of money.
- SpongeBob may have earned this money through a side job he works at that does not appear on TV.
- The sexuality of SpongeBob is complicated, leading to some fans speculating that he is homosexual due to the lack of romance between SpongeBob and someone of the opposite sex. In direct response, the creator of SpongeBob said sea sponges are asexual. Therefore, calling them homosexual does not apply. This is contradictory as there are many episodes that show sea sponges of different sex especially SpongeBob's family, concerning why he has two parents instead of one. In the episode "Pressure," SpongeBob demonstrates to Sandy with the ability to reproduce by budding. In another episode regarding entrepreneurs, in the latter, SpongeBob and Patrick show romance to the opposite sex to Mary and her mother seen earlier in the episode "Chocolate with Nuts."
- Even though the creators have said that sponges are asexual, in reality they can be either asexual or sexual; some are even both.
- The Dirty Bubble is popped in "Mermaid Man and Barnacle Boy II" and "Patrick-Man!." However, he has somehow been reincarnated.
- The Dirty Bubble Bubble Wand, seen in "Back to the Past," might explain this.
- In "Chum Bucket Supreme," Plankton claims he has never met Patrick, even though in plenty of other episodes they have met. In one episode, Plankton hired Patrick to represent the Chum Bucket in a competition.
- It is possible that this episode takes place before those current episodes.
- In some episodes, character's doors open inward, and in other episodes, it opens outward.
- A possible explanation is when the buildings get reconstructed from damage.
- In "Have You Seen This Snail?," there is a picture of SpongeBob as a kid with a younger Gary, implying that SpongeBob has had Gary since they were children. Additionally, in "The Chaperone," Gary at least vaguely knows the details of SpongeBob's prom, implying he was there (although SpongeBob could have just told him). However, in "Treats!," SpongeBob has a picture of SpongeBob getting Gary at the pound and SpongeBob is an adult.
- There is no proof that SpongeBob is an adult the "Treats!" photo.
- In earlier episodes, like Patty Hype and Pizza Delivery, the Krusty Krab has one drive-thru, but in Driven to Tears and Drive Thru, the drive-thrus are different.
- This can be explained by the destruction and repairing of the Krusty Krab.
- In "Mermaid Man and Barnacle Boy V," Mermaid Man calls Barnacle Boy Kyle, but in "Mermaid Man Begins," Mermaid Man calls Barnacle Boy Tim during the Origins Special.
- One explanation is that Mermaid Man is extremely old, has bad memory, and could have accidentally called Barnacle Boy the wrong name in "Mermaid Man and Barnacle Boy V."
- In "Mermaid Man Begins," the Origins Special made so little sense that it may have just been dreamt up by the producers of "The Adventures of Mermaid Man and Barnacle Boy." In "Mermaid Man and Barnacle Boy II," Mermaid Man says about the producers that "They never tell us anything anymore!!!"
- It is notable that the voices of Mermaid Man and Barnacle Boy, Ernest Borgnine and Tim Conway, share the same first names as Tim and Ernie from the Origins Special in "Mermaid Man Begins."
- In "Married to Money," Mr. Krabs mentions he has never told anyone the Krabby Patty formula before, even though he has told SpongeBob, as revealed in "Truth or Square" and the SpongeBob Copies in "CopyBob DittoPants." This could be a hint that "Married to Money" takes place before "Truth or Square" and "CopyBob DittoPants," or simply a continuity error.
- SpongeBob can tie his shoes in "Rock Bottom," but he can't in "Your Shoe's Untied." Shoes could take place before Bottom.
- SpongeBob is seen surfing in "Ripped Pants" and "Pranks a Lot," but he doesn't know how to surf in "SpongeBob SquarePants vs. The Big One." These two episodes could take place before "Big One."
- SpongeBob's spatula is named Fifi "Little Yellow Book," but in most other episodes (like "All That Glitters"), his spatula's name is Spat. He could've renamed his spatula or got a new one somewhere in between these episodes.
- Yellow Book also reveals that if SpongeBob sees plaid, he'll act like a chicken. Also, if SpongeBob hears the Bikini Bottom Municipal Anthem (instrumental), he'll dance in his underwear.
- However, in "Patty Hype," he was selling plaid patties.
- In "Stanley S. SquarePants," Sandy's cousin was wearing plaid, and SpongeBob did not act like a chicken.
- In "Model Sponge," he walks by Mr. Krabs wearing plaid golf pants.
- He and Patrick also wear plaid in "A Friendly Game."
- In "Imitation Krabs," SpongeBob and Robot Krabs ("Plankton") sang the Bikini Bottom Anthem, and SpongeBob didn't dance in his underwear. It could have been an alternate anthem or due to it was being vocal instead of instrument. It could also be due to the instrumental part not being present.
- It could be possible that SpongeBob developed those habits after the episodes took place or got over them.
- The organization of Mrs. Puff's Boating School has been known to change.
- In "New Student Starfish," there is a hallway with lots of rooms, and the front door leads to the hallway.
- In "Ditchin'," SpongeBob exits the door to Mrs. Puff's left which leads outside, as the front door.
- In "The Bully," there is a door in the back right, even though there is no door there.
- It could be possible that the school layout changes after the times destruction happens to the school.
- In "Goo Goo Gas," it is unknown how the people in the Krusty Krab turn back to normal. It could be presumed Sandy or the Purple Doctorfish give them antidotes.
- In "Good Neighbors," the Summoner says that Squidward has to do community service every Sunday for the rest of his life, yet this is never brought up in later episodes. It could presumed this episode takes place before "Band Geeks," and Squidward was let go of his community service after the success of the Bikini Bottom Super Band at the Bubble Bowl.
- At the end of "Unreal Estate," Squidward is living in Patrick's house, while SpongeBob has moved into Squidward's house and Patrick is in SpongeBob's house.
- Squidward might have eventually got homesick and asked SpongeBob if he could have his house back, then told him he was the one making him "allergic" to his pineapple in the first place. Not too long later, everybody would have their own house back. SpongeBob also had to have repaired his house because in the episode Patrick ate most of it.
- At the end of "Teacher's Pests," Mr. Krabs, Plankton, and SpongeBob all had to be stitched together. It is possible that SpongeBob, Mr. Krabs, and Plankton got their own bodies stitched together.
- Mermaid Man and Barnacle Boy are humans and have the same size as sea creatures, while humans outside of the water are much bigger than them.