Grandma's Kisses / Squidville - S2-E9
Continuity mistake: When Squidward parks his bike next to the store, he goes inside, and when he goes outside, his bike is gone.
Valentine's Day / The Paper - S1-E16
Plot hole: When SpongeBob goes to Sandy's house, he blows a chocolate bubble with the shape of a heart. Sandy opens a little door and the heart comes in. But, if the heart enters, don't you think that water would have also entered?
Boating Buddies/The Krabby Kronicle - S6-E9
Other mistake: In "Krabby Kronicle," when the two scientists exit Sandy's air dome, there are bubbles trailing behind them.
No Weenies Allowed / Squilliam Returns - S3-E6
Continuity mistake: In "No Weenies Allowed", the gatekeeper in front of the sailor club has a tattoo on his front with a heart and MOM on it. Sandy rips it out and places it back upside down. It now shows an upside down heart with WOW. In the next cuts between this and when Spongebob gets sent to the Weenie place, the tattoo suddenly has the heart downside up reading WOW, or upside down reading MOM. This is never possible because MOM was supposed to be with the downside up heart, not the upside down heart.
Plot hole: In "Once Bitten", Mr. Krabs never unlocks the doors to the Krusty Krab, but at the end of the episode, Squidward enters with no problem.
Suggested correction: Maybe Squidward has a key to the Krusty Krab that Mr. Krabs doesn't know about.
He could still have a key, but we don't see it.
Skill Crane/Good Neighbors - S4-E4
Continuity mistake: During "Good Neighbors" SpongeBob is in Squidward's house talking to him while he is in a pink nightgown. Squidward throws SpongeBob out of his house while he is in his regular brown shirt. When he is back in his house, he is in his pink nightgown again.
Enemy In-Law/Mermaidman and Barnacleboy VI: The Motion Picture - S4-E7
Continuity mistake: Patrick turned out to have put the lens cap on the camera before they started to film. But when the first scene was being filmed, there was no sign of the lens cap on the camera. There was also no sign of the lens cap on the camera when the Pearl "Boatmobile" fell off the cliff.
Sandy's Rocket / Squeaky Boots - S1-E8
Other mistake: In the episode "Sandy's Rocket", Spongebob and Patrick go "alien-hunting." SpongeBob and Patrick are in Squidward's house. But when SpongeBob holds the hot water bottle, and he says "No, it's an egg-sack!", one of the drops leaking from the bottle goes up instead of down.
Gullible Pants/Overbooked - S6-E19
Other mistake: In the episode where SpongeBob has to do 3 things in 1 night, near the end, they all get frustrated for not doing their tasks. Look at Mr. Krabs. He runs over to SpongeBob and behind him is bubbles. Impossible, because in Sandy's dome is air.
Continuity mistake: When Mr. Krabs' ancestor eats SpongeBuck's chilli he takes a spoonful and spits it out. In the next shot of SpongeBuck, chilli is all over is face, but he didn't spit out that much chilli to have his entire face covered.
Pressure / The Smoking Peanut - S2-E12
Audio problem: In the beginning of "The Smoking Peanut", Spongebob takes his hat and spits it in the air like Clamu would do. Before he puts the hat in his mouth, he says, "a cannonball", the camera is on Spongebob and his mouth isn't saying that. He has his mouth open to put the hat in his mouth.
Pressure / The Smoking Peanut - S2-E12
Continuity mistake: After SpongeBob confesses he threw the peanut at the oyster, a zoo keeper says, "wait, here is the real criminal", and he drags out Mr.Krabs. If you look at his pockets you can see food, candy, and other junk. Yet when the zoo keeper accidentally rips Mr.Krabs clothes off the pockets are completely empty.
The Chaperone / Employee of the Month - S1-E12
Continuity mistake: When Spongebob is talking about Annoy Squidward Day, you see a calendar with 28 days, indicating that it's February, but the empty picture on the wall says January.
Mermaid Man and Barnacle Boy III / Squirrel Jokes - S2-E4
Continuity mistake: In "Squirrel Jokes", on Spongebob's second act when Sandy laughs about the bronze fish, she is between 2 people. When you see her again she isn't between anybody.
Audio problem: In the scene where Spongebob is falling into Gary's dream, Spongebob is screaming for at least one second after he hits the ground.
Jellyfishing / Plankton! - S1-E3
Continuity mistake: In Jellyfishing, when SpongeBob and Patrick first take their nets to jellyfishing, they only take their own nets. But when they go to Squidward's house, they have another net, just for him.
The Graveyard Shift / Krusty Love - S3-E13
Continuity mistake: In "The Graveyard shift", Squidward begins to count the signals that means the ghost will appear. "First the lights, then the phone.", and a green slime appears in the wall. Squidward says "Oh, wait, they always do that, but what was the third thing?", and the bus appears at the front of the Krusty Krab. SpongeBob says, "I didn't know the bus comes here at this hour", and look at the wall: the green slime has disappeared.
Bubblestand / Ripped Pants - S1-E1
Continuity mistake: In the scene where Squidward complains to Spongebob about the construction noise from his stand, Squidward's porthole in the background is black, but from the interior there is a light on (Note: this also happens in every other shot of his house.
Bubblestand / Ripped Pants - S1-E1
Continuity mistake: SpongeBob takes off his ripped pants, and throws them on the ground. His shirt sleeves are perfectly intact. Next, Sandy and Larry are shown playing volleyball. When SpongeBob is shown again, his pants are still gone, and so are his shirt sleeves.
Survival of the Idiots / Dumped - S2-E8
Continuity mistake: In the episode "Survival of the Idiots," when Sandy wakes up in Spring and goes outside, the first time we see Patrick and SpongBob standing side by side, SpongeBob is to our left, but later when SpongBob is trying to make up an excuse, they've swapped places.
