I found a lot of bugs!
A lot of the time I can dash into walls and end up past them inside the wall.
If I ctrl+L back to my save during a chase the spider appears in the next room I go to and follow me until I go to a room that supposed to have a spider in it.
And when there's the thingies you can cloak through on the edges of rooms, when I cloak through them I get stuck and have to ctrl+L my way back to my save (this glitch is how I discovered the above glitch).
Also the text box thing is happening to me where it overflows and I can read it.
And is the umbrella supposed to do anything, because from what I can read from the description it's supposed to act like the gun, but I can't throw it.