3D? How would that work, that would be very interesting!
So about the speedrunning perspective, I don't have that much to talk about since it's not that hard to speedrun the game with the use of three mechanics:
1.You only need to transform once
2.You don't necessarily need to be sneaky in some situations
3.You only need to open one door
In case that's not what you meant, as a person that speedran this game I used two glitches: the wall collider glitch, and the button-stalemate glitch.
And if that's also not what you meant.....I might need to read your comment again.
Also I know you based this on Among us, but it is almost identical to a movie Among us was based on/unintentially similar to.