Hey man great game.
The only thing I would change was a different gunshot sound effect for when you fire your last bullet. It's hard to know how much ammo you have in all the chaos. Maybe a lower pitched beep for your last shot.
I think you should also change the sound effect for when you're firing and there's no bullets. Maybe something like NR10-14 0x00,0x40,0xA1,0x14,0x87. Because right now it sounds very similar to the regular bullet sound so on my first time against the bandits I didn't know I was out of ammo.
I loved the horse game by far the most.
Great game again! Good luck in the competition!