Five Nights at Freddy's 2, released in 2014, is the horror sequel in which players survive night shifts by watching animatronics through security cameras instead of closing doors. The camera button sound comes from that in-game monitor system, marking each moment the player switches views to track movement around the pizzeria. As gameplay clips, fan edits and horror memes spread online, the short click became a recognisable shorthand for checking cameras and bracing for a scare, and it remains popular with creators making FNAF content today.