Visible crew/equipment: The fake spider that suddenly swings down in front of Allison in the hallway, and the one "thrown" at her as she walks through the mall at the end, are obviously prop pranks, as you can hear a fake laughing in the background during the latter. Very badly covered up by barking dogs and something whining.
Chopping Mall (1986)
1 visible crew/equipment mistake - chronological order
Directed by: Jim Wynorski
Starring: Kelli Maroney, Karrie Emerson, Russell Todd, Tony O'Dell
More mistakes in Chopping Mall
Ferdy: Look, I'm sorry if I made you angry, Linda.
Linda: It's not you, Ferdy. I'm just not used to be chased around a mall in the middle of the night by killer robots.
Trivia: Towards the end of the film, Allison hides from the last remaining Protector Robot by hiding in a pet shop. The name of the shop is "Roger's Little Shop of Pets," which is a reference to "The Little Shop of Horrors," a film directed by Roger Corman, husband of Julie Corman who produced this film.