ForRewind Or Die player sho are looking for those little Piggies to open the secret door, this guide will show you all those locations in game, let’s check it out.
Freezer conveyor room
Roof of Garage
Unlocking the door
After you have killed all 5 Piggies head to the cell room and between the haystacks will be 5 skulls, interact with them to open the door!