[short 'Going Crazy'] When Detective Ripman is talking to Wim, Detective Steinberg is waiting at the front door which is alternately open or closed.
[short 'Klappen Kopen'] Henkie grabs Jan Peter B and pushes him against the wall. When Sjakie is joining him, it's clearly visible Henkie is not holding a person anymore.
[short 'Babysit'] At some moments the baby, who is supposed to be a real living being, is obviously a play doll.
[short 'Gangster Killer'] The Gangster shoots the Victim through a bedroom window, but no glass is breaking or can be heard bursting.
[short 'Triple Hooked'] When Peter enters the bathroom, the reflection of the cameraman can be seen in the mirror above the sink.
[short 'Doof'] After the Burglar grabs his crowbar and breaks the lock, Henkie is sitting down and his smiling reflection can be seen in the low corner of the window.