Squid Game (2021)

Red Light, Green Light - S1-E1

Revealing mistake: In LGL, if you look at the map of players, look at the player top right of 456 which is player 415. It is a balding man with glasses. Yet during the massacre of LGL, you see at the doors that player 415 is a woman with long hair in a pony tail.

Agroth II

VIPS - S1-E7

Revealing mistake: The Front Man draws his 1911 pistol when he suspects the police officer is in the penthouse. When he does, you can see a hex screw and a brass valve on the bottom of the magazine of the pistol. This would indicate it to be an Airsoft replica. (00:03:41)

Matdan97