So I found out that you can use elevators to clip through walls (and maybe out of bounds??). It's fairly trivial to do. Here's how to do it:

• Stand on an elevator, and call it upwards.
• When it's moving upwards, walk to the edge of the elevator that is closest to a flat ceiling (this is important!)
• Stand still, and you clip straight through the wall! You can use any ability while clipped through a wall.

A video below shows this off:

FYI: you don't need to crouch. The game automatically did that because Emi became too close to a ceiling.

This has amazing potential to do some busted stuff, although I haven't found any bombshell use of this yet. I was thinking of using this to bypass the robot in the beginning so that you wouldn't have to FIFE yourself to bypass it, but unfortunately the developers placed a wall inside of the walls! 99% of the time though, the inner walls have no collision.

I've also tried to get out of bounds, but it as though seems each room has invisible inner walls towards the edge of the loading zones (edges of the screen), so I don't know if that is possible. I hope it is, because that would be cool.

Oh by the way, elevator clipping does not work against slanted ceilings AFAIK. I haven't gotten that to work.

Being fully out of bounds puts Emi into a very glitched state, where you're treated as both in the air and up against a wall, but Jupi and I have only labbed it for one room, I'll have to get a video of it later tonight or tomorrow morning.

resetting the room to an entrance where there's a loading screen, and then intentionally going past the loading zone (holding left after the guard KOs Emi, in this example) puts Emi out of bounds and in a weird glitched state, treating everything out of bounds as "touching a wall" untill she reaches the lowest floor where she then enters a glitched aerial state (one wings, one dash, then you get nothing)