Once i started I did not think it could that fun. But I was wrong, I replayed it quite a few times because it just felt great! Atmosphere was nice and well fitting. And whole game was just satisfying to play.
Only feedback I could give is that it is possible to get stuck a bit on around 9-10th stage, when map expands. I got an enemy in the side position while my closest gun was few squares away from the corner and I couldn't shoot it down and had to restart.
Despite that it was very well executed idea, so well done. Looking forward for more after the jam!