I really liked exploring the place to find ammo. Killing the aliens is very satisfying.
Unfortunately I've clipped on the walls many times and had to restart the game. Also I felt overwhelmed by the final boss. Seemed to not suffer damage from my bullets and I couldn't avoid its projectile. Really liked the tension you built while approaching it though.
Congratulation for all the work done, making all the art and the music must have taken a lot of time