Continuity: When the town has a Conjoined Twin Myslexia Parade, and Nurse Gollum is walking; you see her right hand down as she walks, and no people in the background. Then the shot changes, and you see her right hand up waving, and people where there weren't any before.

Continuity: When the bus starts to rock, just after Cartman has recalled the Fonzie story, the background turns from day to night in a split second.

Continuity: In the scene where the Cartman family and boys are seated at table, Kenny sits between Kyle and Great-Grandma. But a few shots later Kyle has to hold Great-Grandma's catheter bag, as he is now sitting next to her, and Kenny is no longer between them. However he's back between them again when the camera shows the whole table.

Continuity: A little while after Cartman leaves the group and finds the construction zone, we see a frontal view of the rest of the group. Cartman is still in it.

Continuity: When Stan, Kyle and Kenny go to Chef's house to tell him about Veronica, they can't talk to him so they sit down opposite Chef's parents. When Kyle says, "We have to talk to him," he and Stan have swapped places.

Continuity: Kenny's head is completely smashed when he is attacked in the church during Chef's and the succubus' wedding, but it is whole again when Cartman brings it to the optometrist to get an eye transplant.

Continuity: In the episode "Cat Orgy" when Sheily's boyfriend, Sklar, are playing the song for Sheily while Cartman is hanging on the coat rack you can see of what looks like a picture of Cartman's grandparents hanging on the wall. But when Sheily walks over and flings Cartman up into the ceiling for arguing with her, look at the wall, the picture is completely gone.

Continuity: Just before Cartman sends his kitty out of the window with the photo, there's a photo frame on his desk and a "Cartman" cutout tacked above the desk, and on his bed is his frog toy and his hat. When Cartman walks over to the window with the kitty, all these items have vanished.

Continuity: When Cartman gets his kitty the catnip from under the kitchen sink, a yellow plate rack full of plates appears on the worktop next to the sink that wasn't there in previous shots.

Continuity: When Shelley and Skyler are in the kitchen, there's a plate on the table with pizza crusts on it. Between closeups and wide shots the crusts continually switch from the left to the right side.

Continuity: When Cartman is playing "Wild Wild West" with his toys, he has a female doll tied to a piece of wood on his bedside table. Then after his mom comes in and leaves again, Cartman starts dancing, and suddenly the doll has appeared behind him, and is also off of the wood.

Continuity: When Shelley chucks Cartman into the wall for arguing with her, the wall cracks. But later on in some shots the cracks have gone.

Continuity: In the scene where the ATF fires at the group of people coming out of Mr. Mackey's party, they drop dead. A few shots later when the ATF aims the big gun at the door, the bodies and bullet holes in the house are gone.

Continuity: At the toy store, Stan shows Cartman the three Chinpokomon he is buying: Lambtron, Roostor, and Shoe. When Stan's mother is at the cash register paying for his toys, though, she has a different Chinpokomon and Pingin. At the bus stop the next day, he has yet another different Chinpokomon.

Audio problem: Near the end of the episode, where the boys are standing at the bus stop and Kenny (who is in a seizure trance) starts getting attacked by rats, Cartman yells, "Hey, get away. He's not dead yet", but it doesn't sound like Cartman (the tone seems more high-pitched.).

Continuity: The second time the boys go through the wormhole you can see that Kenny is with them, even though he is still meant to be on earth.

Continuity: In the episode with the new civil war, when Clinton unrolls the scroll, it goes from rolling horizontally to rolling vertically between shots.

Factual error: In the episode where Cartman thinks he has had his period, a news report says it was merely a viral infection, simple antibiotics will cure it. Antibiotics are only used on bacteria and have no effect on viruses.

Continuity: In the episode with the recorder concert. When Cartman and Kenny come into the hotel room, saying that they've found the "brown noise", Cartman is wearing headphones and holding another pair in his hand. Then he suddenly has two extra pairs - he gives one to Kyle and one to Stan (and is still wearing one himself).

Plot hole: When Cartman writes the "brown noise" onto the score for the recorder contest, the note he writes is an ordinary E flat note. If E flat was the brown noise, wouldn't it have already been discovered years before?