Puzzles did get challenging pretty quick and was sometimes not sure if I was doing it "right". One puzzle I had to glitch/climb the far left side. Not sure if that was designed that way or if I just cheated past. :)
Regardless, I had fun. I kept pressing "W" to go up from an intuition point of view and felt a tad discombobulated with the controls chosen. Might be able to do a little more polish with that.
With that being said, I really enjoyed the "skin removal" phase change. Very creepy and played well with the necromancer theme!