Same camera issue as Lumps Plays above. Also, got past the black-on-white "you have to make choices" level, onto the white-on-black after it, camera blinked out on the first hallway ( I assume that's supposed to happen), the scenery changed, I continued on. The camera blinked out on the second hallway (also probably supposed to happen), the scenery changed, and as I continued into the third hallway, I got hung on corner and couldn't get un-stuck, I hit space, wound up trapped in the first hallway cause the blink event didn't trigger or something, and no amount of walking into walls or resetting fixes this.
Please fix the camera issue, maybe make it so you can't get hung on corners so easy, and look into the blinking event above . Also there's a texture error on on of the black-on-white levels where the back lines on the border of one tile overlap the white middle of the next creating a sort of cross hatching. I can't remember the level, and it only occurs on one tile, so its probably too small to worry about, but in case you want to know about it.