I have an idea for a part of a scary or whimsical age:
You walk into a room and are on an elevated walkway that goes straight across to the exit other side.There are some other walkways in the room, let's say two. One of them, though, cuts diagonally across the room from the floor to the ceiling, and the other one is perpendicular to your walkway, except it is also upside-down. The camera angle would be fixed in this room, so that you can see everything in the room at once. If possible, it would also force 3rd person mode.
When you walk through the exit on the other side, instead of coming to a new room, you would walk onto the sideways walkway, and when you crossed to that exit, you come back out on the upside-down one!
The way it would work is that you would model 3 identical rooms with the camera in the same place relative to the room. Except the whole room would be rotated so that whatever walkway you're on is perpendicular to gravity. And then just line up the 3 rooms so that you can walk out of one and into the other.
I guess having 2 people in different rooms at once would sort of ruin the illusion, but it would still kinda work...
Anyone like the idea?