Plot hole: Ep 3-21 Spongebob Meets The Strangler / Pranks A Lot: When the invisible Spongebob and Patrick scare Sandy, they are using a sheet to appear as "ghosts". However, the form of the sheet reveals that they don't have their helmet bowls on. How could they survive in the treedome that time? They sounded fine, not dehydrated.

Plot hole: 3-21: Spongebob Meets The Strangler / Pranks A Lot, in "Pranks A Lot", Patrick and SpongeBob scare Sandy. When Sandy runs, gets into her rocket and flies away. When she moved bubbles appeared meaning there's water in her tree house. There's no water in there in other episodes because she's a land animal and breathes air.

Continuity: During the entire show, numerous locations in Bikini bottom change place. Example:. in F.U.N, the chum bucket is in the middle of the town center, but in other stories it's across the road from the Krusty Krab.

Continuity: REAL 3-18: Plankton's Army (aka Plankton's Last Stand) / Missing Identity: When the screen splits into 4, the last 2 events are not in chronological order. That is, they are not in the same order as they always have been.

Continuity: In some episodes, SpongeBob's house is apparently an actual pineapple (e.g. "Home Sweet Pineapple"), but in other episodes, it is apparently made of wood like in "Opposite Day", when they tear down the house and rebuild it.

Continuity: On "One Krab's Trash", when Mr. Krabs draws a ghost on a sheet of paper, it shows before it goes into Spongebob's rooms that there's only writing on one side (i.e. the ghost) and when it goes into his room, a shopping list is on the back.

Continuity: The Krusty Krab kitchen sometimes has deep fryers, and sometimes it doesn't. When it does, the fryers change locations in the room between episodes.

Continuity: In the Season 4 episode "Selling Out", at the end, all the customers leave the Krusty Krab. But when the Krusty Krab floods, the place is packed with customers. Submitted by Brad

Continuity: In episode 3-21, Spongebob Meets The Strangler / Pranks A Lot, in "Pranks A Lot": SpongeBob and Patrick are going to burn Mr. Krab's dollar, so he throws water on them and they become visible. Patrick is holding Mr. Krab's dollar. When he says "We're visible again", and he and SpongeBob start to scream, the dollar completely disappears.

Other: For the whole first season, Patrick's eyebrows are sideways "M"s, but in all other seasons, they're "Z"s.

Continuity: 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.

Continuity: 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.

Continuity: In "Bubblestand" after Squidward blows the huge bubble, he tells Spongebob and Patrick that the ability to blow bubbles is in his genes. If you look at the position of the bubblestand sign, the sign is facing the direction Squidward is talking. The sign had always been facing the street, which means that Squidward was actually talking towards the street, when Spongebob and Patrick are actually to his right.

Continuity: When Spongebob first shows the Patrick the technique for bubble-blowing, there are two red corals in the background - one on his right and one on his left. Later, when he shows Squidward the technique the red coral on the left side of the screen disappears.

Continuity: At the beginning of "Reef Blowers", when Squidward exits his house, you can see that strangely his color is brown. But later in the episode he returns to his normal color, a light blue.

Continuity: Spongebob crashes through Squidward's house, and his bedroom is on the bottom floor. But in "Shanghied" after Squidward exits the fly of doom, you can see his bedroom is on the top floor, as it is in other episodes.

Continuity: At the beginning of Plankton., Plankton is very small. Later in the episode, as in the rest of the show, he's bigger and not that small.

Continuity: In Plankton, when SpongeBob steps on Plankton, he steps on him with his left foot, except he pulls Plankton off of his right foot.

Continuity: In Jellyfishing, when Patrick puts the net in Squidward's hand, at first it is in his left hand, but when he gets the jellyfish on the king jellyfish, it is on his right hand.

Continuity: Spongebob, controlled by Plankton, wasn't aiming directly at Squidward's house, but he eventually breaks through the wall.