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So... funny story... a dead body was found in this vent once. Ok, maybe that's not a funny story.
 
— Angsty Teen (HandUnit), Night 2

In Five Nights at Freddy's: Sister Location, there are a series of vents allowing the player to get from one room to another easily. When the vents detect motion inside of them or are opened, the Female Computer Voice will tell you so.

Dialogue

Entry Way Vent: The vent connecting the Elevator to the Primary Control Module.

Entryway

Ballora Gallery Vent: The vent connecting the Primary Control Module to the Ballora Gallery.

BalloraMaintence

Funtime Auditorium Vent: The vent connecting the Primary Control Module to the Funtime Auditorium.

Funtime auditorium

Circus Gallery Vent: The vent connecting the Primary Control Module to the Circus Control.

Circus gallery

Private Room Vent: A vent that appears on the cameras when the player is in the Private Room. Appears both in the Fake Ending and Custom Night.

Sounds

Description Audio
The sound of the player going through the vent slowly.
Metal duct slow
The sound of the player going through the vent fast.
Metal duct fast
The sound of Ennard moving in the vent.
Metal crawling
The sound of BidyBab moving in the vent in the main game.
Movement
Movement2
Movement 2
The sound of BidyBab moving in the vent in Custom Night.
Ventshort 3
The sounds of the vent banging.
Ventbang1
Ventbang2
Ventbang3
Ventbang4
The thuds of the vent.
Thud2
Thud3
Thud4
Thud5
The sounds of the player entering the vent.
Bin-Met 19G HD2-28018
Bin-Met 21G HD2-28014
Bin-Met 28G HD2-28022
Bin-Meta 2G HD2-28009
Bin-Meta 3G HD2-28008
Bin-Meta 5G HD2-28013
Bin-Meta 7G HD2-28010
The sounds of the player exiting the vent.
Door-Me 58G HD2-29632
Door-Me 64G HD2-29635
Door-Me 67G HD2-29640
Door-Me 68G HD2-29705
Door-Me 71G HD2-29627
Door-Me 77G HD2-29671
Door-Me 78G HD2-29672
Door-Me 81G HD2-29697
Door-Me 90G HD2-29598

Trivia

  • Originally, the vents were supposed to have bars covering them when not in use. This idea was scrapped.
    • But strangely, these were used in the blueprints of the Primary Control Module
  • The player can choose to crawl normally or sprinting in the vents, though going fast skips some dialogue.
  • The vents are previewed in the trailer.
  • On Night 2 it is believed the Bidybabs use the vents to travel to the Player.
    • Although strangely, there are no vents leading from Circus Gallery to Circus Control.
  • If the player stays in a vent for long enough, they will hear noises, as if someone else was in the vent. The player will not get jumpscared, though.
  • It is unknown if there's any vents/doors leading into the Scooping Room or Private Room.
  • It is unknown who's body was found in the vents as told on Night 2 by HandUnit (Angsty Teen), but HandUnit (Angsty Teen) claims that it was a "Funny Story" when he tells you about it.
  • In custom night the vent in the Private Room is changed to have a gaseous-like substance showing and the camera of the vent being lowered for Bidybab.

Gallery

Private Room & Custom Night


Establishment