I had fun with this one, beat me a couple times but I came back for more and it paid off! At first I thought the character movement was a bit slow but then I got used to it and enjoyed the challenge it brings. One thing that stands out to me is how the choice of music fits really well with the art style and general vibe, and I enjoyed those chiptunes. All I'd say is maybe add a speed potion pickup or some other pickup item, like a power up of some kind. I think if you wanted to expand it to a bigger game you could make a cool vampire survivors type thing here, best of luck with your gamedev!