The first 3D section in the woods is very hard the lavigate what is a path and what is just the tree wall, the spider looked like a crack in the ground and the camera has a constant slight swing to the right which was making me nauseous. I broke through the wall of the cabin and got to a screen with a giant red x on it, i tried z, x, space, enter, clicking and the escape button but couldnt figure out what i was supposed to do so i Just left it there.
The Idea is very interesting and I like how you change from one persepective to another, just needs some cleaning up and bug fixes and you'll probably have a good game on your hands!