Continuity mistake: When the class is in Arnold's esophagus, Tim says something, then it cuts back to Ms. Frizzle. Arnold is sitting in the back seat of the bus.
Sins of the Fathers Chapter 1: Doctor Strange - S3-E1
Continuity mistake: The hole in Dr. Strange's wall created by Baron Mordo's servants changes size and shape when Spider-Man is hanging Dr. Strange out the window. (00:10:25)
Behold, a Distant Star - S2-E10
Continuity mistake: When Sue is talking about her father going into hiding, the camera is on the right side of a photo album, showing a newspaper clipping of him being wanted for murder. When the shot changes, the contents of that page are now three different photographs. (00:07:32)
Rejoice! I Am Ultimo Thy Deliverer - S1-E2
Continuity mistake: When Tony and Rhodey are first shown walking into the yacht's surveillance area, Rhodey is wearing white shoes. In the next shot, his shoes are black.
Coach Fussell's Lament - S2-E5
Continuity mistake: Chairface and Chrome Dome arrive at the Brianchild's house in the same car, but drive off in separate cars.
Continuity mistake: To beat the traffic, Coop skateboards inside a construction pipe. The pipe is on the back of a truck, so it's not exactly very long, and gets picked up by a crane arm mounted on the truckbed itself. However, Coop takes ages to come out of the pipe, and in the shot from inside the pipe it looks as if is dozens of meters above the street level, which isn't. (00:08:00)