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In Floor 1, there are multiple pipelines, and cables on the ceilings and draws of the Animatronics in some walls. The ground floor and ceiling are noticeably a cobblestone stone and has multiple rocks, crates, barrels, on it, and the walls are made out of rocks. Above the crates, there seems to be an empty Lockjaw head and, hung by crates, a Fredbear poster with a pose similar to the posters in Five Nights at Freddy's 3. On the poster, it will have many words written with blood reading "Guilty" and another word reading "Never Forget".
On this floor, Torture Lockjaw, Torture Freddy, Torture Bonnie, and Torture Foxy were meant to appear after the player opened the cage door that separate him and the animatronics. The player must listen for noises (like footsteps and metallic noises). It means that one animatronic is near. To avoid being killed by them, the player must turn off the flashlight and don't move until the animatronic is gone. In order to complete this floor, the player has to find the key, open the cage door and find the elevator to go to the next floor.
Unreal Engine 4