Continuity mistake: When we see Kenny from the front, the hole in his head exposing his brain appears on his left side, but when we see the top of his head when he is biting people, the hole is in the back of his head.
Continuity mistake: In the opening scene, the trees in the background keep moving between shots.
Continuity mistake: Tom's Rhynoplasty appears between two different sets of buildings in the street shots.
Continuity mistake: In the cemetery scene where Kyle calls the emergency hotline and Stan and Cartman hold off the zombies, in the shot where Kyle's hand holding the Worcestershire Sauce is shown in close-up, his gloves are shown as green instead of white, which they are while Kyle is in his vampire costume.
Continuity mistake: During the scene where Chef goes to see the Mayor and Officer Barbrady, there is a shot from outside, where a pumpkin is visible in the window. But when Chef goes inside, there is no pumpkin.
Continuity mistake: When Kyle cuts Kenny in half, we see a skull behind him, but in the other scenes, the skull is to his right.
Continuity mistake: At the end when the airplane hits Kenny, there is a gravestone with a cross on it behind him, but all the time when the other three boys were talking, none of the gravestones behind them had crosses.
Answer: He appears in at least 5 other episodes, but usually just as a background character. He can be seen at Cartman's party in "Immaginationland". He was also one of the kids trying out to replace Butters in the "Professor Chaos" episode.
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