Great entry! Love the use of the theme and the visual aesthetic. The only critique I would have is that when the enemies are grayed out the first impression the player gets is that they can't be interacted with. When in fact they can still interact with the player and hurt him. There's also not a good indication when the player is receiving damage so it makes it even more confusing. I died on the first try because I thought they can't touch me because they're grayed out.
How about changing their appearance when they're vulnerable instead?