Thank you very much for the feedback and for testing the game!
There was supposed to be a dark substance coming out of the walls, but something in the coding went wrong when the game was exported. It was just a placeholder though, so you didn't miss too much, it will look way better later! We will also try our hardest to work out the camera clunkiness, and find a better way to operate it.
Thanks for the heads-up about glitching into the floor, we will have a look at that!