Neat presentation! The visuals are great, and the music is sweet. The rules are simple enough to be quickly assimilated, and provide I great challenge.
I wish I could have seen more though. The game is hard, and very punitive! I couldn't get past the second monster. :/ It deals a lot of damage quickly, and shielding is eventually just a way to delay the inevitable. I couldn't find a safe strategy to beat it.
It's still a cool concept, with a very solid UI and atmosphere. Well done!