The game feels good to play and it's quite polished, the gun animations look amazing! 😁
The graphics are quite polished too, and they kinda give me a old-school shooter vibes, I really liked them!
I didn't feel in danger at all, since you can run backwards and there are no ranged demons, you can just hold shift forever, being impossible to hit by the melee demons. I'd consider adding a new creature that shoots you so the game is more challenging.
Also, the UI could be more visible, it gets lost easily as there's no contrast between the level and the UI.
Other than that, very good entry! Good job! 😊