Continuity: When Kim and Shego stop chasing Ron back in Drakken's lab Shego is wearing a purple apron, then the camera moves away Shego and Kim then comes back and Shego is not wearing a purple apron, then the camera moves away again and then comes back to her and now she is wearing the apron.
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Mistakes
Right after the cheer off, there's a wide shot of Kim and Ron. As Ron is saying, "Uh, yeah about that," he moves into a shadowed area (look at the lockers). It cuts to a close-up as he says his line, and he's still entering the shadowed area. See more...
Kim Possible mistakes
Other: In the scene where Kim is running across grass-covered Japan to stop Duff Killigan, when she talks her lips don't move along to the words.
Continuity: When Kim tries to find the Personnel Management room, the door is to the left side of the blue ribbon, but when it shoots to the next scene, it's on the right side.