The gameplay is fun, although for the final boss I could just sit outside the walls and kill him since I found the attack timings and overall strategy pretty confusing.
I agree with the other commenters that it would have been way better to either full-screen the game or zoom out the perspective more, I kept clicking out of the game.
The little comic cutscene in the beginning was really cute, and the music adds to the atmosphere too, it's just unclear if it's self-made or there is some credit due there.