I'm a fan of the genre, made a game of the style myself(not the jam one).

I think you got the basics down pretty well. If you'd add some weapons, enemies and upgrades I can see it being pretty neat.

Good job :D

I really like the pixel art of the game

It need more work, but i like it! Nice vibe

A very nice start for a survivor like game! Could definitely use some powerups or different ways to attack or possibly a health bar so you don't instantly die but the rate of enemies spawning felt pretty good and challenging. 

Pretty nice and cozy game, but actually really hard, in the general I liked a lot

Hell, pretty nice game you got going on there, maybe there could be some level up powerups if you plan to work this on the future but the overall feel of the game was ok, maybe you could check my game out to it is something inspired by Vampire Survivors also.