This game is good! It's hard and reminds me of some old-school platformers (because of the unforgiving controls), but you can master and enjoy it. The theme and gameplay are connected very smoothly and the puzzles are easy, but with increasing difficulty. Good level design!
The only thing I didn't understand was that sometimes the levels seem to reset when you die too often. Somehow I thought that when activating the shrine that allows my corpses to remain in the level when dying, I could use this mechanic until my total life reaches 0 or when I activate the vampire shadow shrine...
Btw: we both use the idea of leaving our corpse in the level when dying, but you really made a game with that concept (and other mechanics!), whereas my game is just a prototype...