Revealing mistake: The glue holding the beard to actor B.D. Wong's (Dr. Hugo Strange) face is always visible.
Continuity mistake: When Jerome get stabbed in the neck, in the first shot the blood comes from his mouth and goes towards his eye. In the next shot, there's no blood trail going to the eyes, but instead to his cheeks. (00:34:50)
Revealing mistake: When Harvey Bullock and Jim Gordon enter the apartment of the arsonists, as Bullock approaches the bodies, you can see one of the actor's eyes close, despite the fact he is supposed to dead. (00:20:10)
Mommy's Little Monster - S2-E7
Continuity mistake: Miss Kringle's head is canted up and to the right as she lays on the gurney in the morgue refrigerator, but when Edward Nygma pulls her out, her head is facing straight up. Subsequent shots of her in the refrigerator her head is canted up and to the right.
Continuity mistake: When Alfred leaves the garbage dump and tries to commandeer the car, the driver's are already wet from a previous take before Alfred throws him on the wet road.
Factual error: When Penguin meets his father for the first time the father mentions he has brought a bunch of lilies, her favourite, but he is actually holding stock or delphinium.
Factual error: The address on Lee's business card shows her zip code for Atlanta, GA as "11453." This is a non-existent US zip code, and the zip code for Atlanta is "303xx."
Continuity mistake: When Alfred walks into the cabin, gun drawn, his right hand is already bloody, despite the wounding happening 5 seconds later.
Continuity mistake: While Alfred consoles Bruce over the death of Karen, Bruce's head immediately changes position depending on the angle of the shot.
Continuity mistake: During Barbara and The Lady's meeting in the club, The Lady's glass is on the table. The next shot The Lady is holding her glass off the table.
Answer: "The Merc" was a warehouse like store with aisles that sold mainly weapons, machetes, AK-47s, C-4, barrels of acid, etc. In s02e05, "Scarification", it was shown being raided by GCPD.
Bishop73