I like the atmosphere of the game, and the music totally sets the mood. Unfortunately, it is painfully easy. There was never any tension, and the lack of a consistent flow of enemies made it feel more like a waiting game. Maybe more enemies came later on, but it takes way too long to get to that point. Definitely throw more enemies at the player, and hopefully a little variety in enemy type eventually.
I like the blood stain mechanic. It reminds me of Dead Alive. :P