Your feedback is great. I will for sure be working overtime on those bugs for the next update. I will consider lighting adjustments as well, but I'd like to make sure you feel this way after rescuing the fairy? She serves as a "flashlight" through out all the levels, but it isn't required for you to get her, so the player can actually miss her and go through the game with no additional light.
Unfortunately, I had to change the camera system for technical reasons. Having it behind the player worked better for large enemies (the troll), whereas the 3/4 angle was really bad for boss fights.
With all that said, thank you for playing.