Mad City: Beware the Green-Eyed Monster - S3-E11
Continuity mistake: When Alfred pull the man out of the car, his behind is already wet before he hits the road. (00:11:47)
Heroes Rise: Destiny Calling - S3-E21
Continuity mistake: As Bullock and Gordon face Fish Mooney in the tunnel, just as Fish says "Uh, no'", there is an angle change and Gordon suddenly goes from holding his gun in a high, two-handed grip, to a low, one-handed grip. (00:13:15)
Mad City: Anything for You - S3-E5
Continuity mistake: After the Red Hood gang breaks the head of the Penguin's statue, it falls and hits the floor, then it moves between shots.
Mad City: Anything for You - S3-E5
Continuity mistake: While the penguin is speaking to the crowd and the Red Hood gang is arriving there, the sun changes between shots.
Heroes Rise: All Will Be Judged - S3-E19
Continuity mistake: Gordon's pistol switches between shots from higher to lower and higher again.
Heroes Rise: All Will Be Judged - S3-E19
Continuity mistake: The crowbar held by the Riddler instantly changes position from higher to lower and back again.
Heroes Rise: The Primal Riddle - S3-E17
Continuity mistake: Harvey Bullock removes his reading glasses twice while looking at Frank Gordon's crime photos.
Heroes Rise: How the Riddler Got His Name - S3-E15
Continuity mistake: Edward Nygma rolls gas canisters down the aisle at the Gotham Police Academy speech, the canisters land on their sides, then suddenly they are standing upright, spewing gas.
Mad City: Follow the White Rabbit - S3-E6
Continuity mistake: Valerie Vale places her coffee cup on a napkin while having breakfast with Jim Gordon, but when she gets up to leave immediately after, the cup has moved off the napkin and onto the table.
Mad City: Anything for You - S3-E5
Continuity mistake: Edward Nygma's eyeglasses instantly disappear while riding in the convertible with Mayor Oswald Cobblepot.
Mad City: Better to Reign in Hell - S3-E1
Continuity mistake: While speaking with Lucius Fox, Bullock turns his head to the left twice.
Mad City: Better to Reign in Hell - S3-E1
Continuity mistake: When Gordon is talking to Bullock, Bullock raises his coffee cup to his mouth. The next shot when Gordon turns, Bullock's cup is lower and he raises it again.
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