The game is really nicely done, and the music is really good and fitting for the game.
The game is really fast, and you can't really survive without sacrificing all the houses except one. Also it would have been nice to have some in-game instructions. I would have put the instructions on the screen, or even make a more complex menu using wasd to go through the buttons. (like W to play, A to see the instructions or D to quit).
Otherwise, the game was really good.