Loving the pixel art, lighting and animation, it was hard to resist the instinct to KILL but it has a unique mechanic of hitting the enemy just enough to not kill them and all the fun weapons I can use although I have only be using the shield XD. music and sound was a bit lacking but it was okay
suggestion:
1) add enemy health bar so we can have a better understanding of how much health they have
2) add a parry mechanic where you can reflect bullet or a sword so you can have some chances when you are cornered
3) GUN GO BOOM NOT GO PEW
4) add new enemies like a random boss room like or a mini boss to turn up the "heat" like one that took advantage of the flames and toss them around like a flamethrower or one that was not burning and either let it touch a fire source or kill it
good job :D