I like the vampire-survivors feel! (I'm not sure if there's a name for that genre) The auto-aiming worked well, and I was impressed about how fun it was for there being a single weapon and a single enemy type.
I'm not sure if it was intentional or not, but I liked how the slimes seemed to stick to the player. I found that rubbing against the trees helped get them off, which I thought would be a clever mechanic to add depth to the genre without adding any new controls.
It's a pretty neat minute or two of fun.
Well done!