Continuity mistake: When TJ's friends climb on on the jungle gym to try and take TJ's place, we see that Gretchen is the last one up and there is no one on the bars behind her. But in the next long shot, Mikey is right behind her. Then when it shows a close up of them, Mikey is gone again.
Factual error: When Gus walks in, all kinds of kids have their backpacks on, like they just got there. Then Jordan asks Gus when he got there, which was 7:58, just a couple of minutes ago. Then TJ says, "Who's up for some kickball?" But it is already after 8:00, meaning they would be late.
Plot hole: Why did Mikey jump to make the feathers fly if Vince said to abort? When TJ gets hit by the feathers, he's on the 'X marks the spot.' But when he got honeyed, he was nowhere near it. Before TJ gets feathered, He gets up onto his feet, like he had fallen down. But he was still standing when Mikey fired the feathers.
Plot hole: Hustler kid tells Gus in this episode that hustlers never deal in things that could get a kid in trouble. In the episode where all the kids need to become Ashley's he has no problem in handing out plenty of fake IDs, and at the beginning of every show he is shown displaying dodgy merchandise to a kid inside his jacket.(the kid isn't inside the jacket...the merchandise is...).
Continuity mistake: When Randall's dad is talking to the gang about what Randall's been telling him about them (when they are outside, in front of the bouncy thing), his moustache disappears mid-sentence (in a close-up of him) and reappears in the next shot.
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Continuity mistake: When Agents Barnes and Noble are passing out the test, there is a boy in a green hat sitting in front of a girl with long hair. The next shot is of the same boy asking if he can use a pen, but now there is another boy with blond hair right behind him.
Continuity mistake: When the superintendent arrives at the school, he looks towards Stone who gives him a thumbs up. When he does this, Stone and the group around him are on the steps right in front of the entrance to the school. A couple of shots later, the entire group has suddenly appeared in front of the window without time for all of them to have moved.