The biggest issue that you will run into is that the FNAF game was probably done in a 3D environment. I say that because the creatures can run down the hallway towards you and the view of each scene is rotating instead of panning.
1. The running down the hallway could be done with sliding and growing events for a similar feel. However, the creature would not be running under the camera unless you animate the rotation and have precise timing for triggering all three events (slide, grow and animation sequence).
2. Doors opening and closing are pretty simple, when space bar (or whatever control) is pressed, if door is open, close door.
3. Camera, as in the camera view of a scene, I have not looked into as much. I would guess that having Left and Right arrow keys triggering a change in the x position of the camera would work. But it would take some tweaking to get a proper feel to it.
4. Cameras, as in the surveillance cameras, would be tricky. I don't think you would actually want to be changing scenes since you need split second timing for stopping the creatures. However, the alternative is stacking lots of animations all into one scene. That could also hinder split-second timing.
