It's a bug so big it almost looks like a boss monster. When jumping onto the tile traps in the 2nd hallway I began rising into the air, I then became attached to an invisible ramp which let me walk through the floor and go from 50 Z to -150 Z, after which I fell off, through the solid floor, into the basement, through the basement floor, and finally into oblivion. I get the same error Kent got about not being able to get the Y Matrix, I am going to test this a few more times to try to find a way to replicate the bug.