Other mistake: Gizmo can't be exposed to sunlight, yet when the shop is demolished he walks out on the street. Note how he is walking past the shady part of the curb to the sunny part, suffering no harm whatsoever.
Gremlins 2: The New Batch (1990)
1 other mistake - chronological order
Directed by: Joe Dante
Starring: Christopher Lee, John Glover, Robert Prosky, Phoebe Cates, Zach Galligan, Robert Picardo
Continuity mistake: When the drawer opens and Clams asks what's up with the drawer, Billy says it opens automatically while having his hands in his pocket. When it cuts his arms are crossed. (00:23:15)
Building Announcement: Would the owner of the car with license number 1AG 401 please remove it from the clamp parking garage, your car is old, and dirty.
Trivia: When that insane gremlin has Billy sitting in a dentist chair and is attacking him with the dentist tool, at some point he asks, "Is it safe?", for many it must have seemed senseless, but it is actually a nod to the 1976 movie "Marathon man", in which, during a scene, Dustin Hoffman is sitting on a dentist chair while tortured with a dentist tool by an ex- Nazi (played majestically by Sir Laurence Olivier) who keeps asking him the same question once and again.
Question: The IMDB states that Bubba Smith was in this movie as himself. What scene is he in?
Answer: He's at the salad bar when the gremlin pops out and grabs a guy. The guy they grab is former football star, Dick Butkus.
Bishop73