Very cool interpretation of the theme. Good job!

Cool game! The music and the shots (their SE and their trails) feel really good! 

Cool concept! I love the upgrade mechanic and the weapon variety.
And nice pick for the music :)

Really fun

Fun little shooter! I like the weapon variety, and the detailed animations!

i tried to move with WASD on the first attempt and it was bugged out, tried it again and worked, fun little shooter great job

Loved this game! It may not be the best "fit" for the theme, but it's definitely fun! The idea that every time you shot you cover a little slice fo screen, but you have to shot in order to survive, it's simple yet effective. And over that, you accomplished to implement an upgrade system, a score, a health bar, and two types of enemies! WOW :D

The only doubt I have is on the theme: why cowboys and knights? (Or maybe those are not cowboys, but... that was my first impression ^^). However, the "dark" part of the theme is there and I could really feel that :)