Continuity mistake: When Lizzie bursts into the cafeteria in a trance like state, moaning like a zombie, she is wearing a large purple ring on her right hand. However it swaps to her left hand a few shots later and remains on her left hand for the rest of the episode.
Continuity mistake: After Matt tells Lizzie, Miranda and Gordo that he ate the Day of the Dead food offering, he puts it down on the side as they continue talking. The food is sitting on top of an orange napkin, but in the next shot the napkin is empty and the food is gone. The food then reappears in the napkin again.
Continuity mistake: When Mr. and Mrs. Sanchez are dropping off the Day of the Dead ornaments to the Fright Night party, Mr. Sanchez hands Kate a fake rubber hand and she takes it with her right hand. In the next shot she is holding it in her left.
Continuity mistake: Lizzie pulls the rubber eyeball out of the glass of mud she is holding, to prove that the mud is actually the remains of Matt, who was turned into mud for upsetting the spirits. As she pulls the eyeball out, between shots the way she is holding it changes.