Great work! i liked this alot. i wasnt a big fan of it going back to the first level when you died though!
In regards to the limitation of the blood is lethal. it seems the blood is necessary to survival - therefore it is the complete opposite of lethality.
Other then that, audio is great, graphics is great. gameplay is great!
A bit more particles/juice, player animation and restarting the current level and not going to the beginning - and id love to play more levels.