There was no sound, That was the major feedback around my first game jam and it was on my list, but it was too late by the time I started looking into sounds.
That is the one missing part, which looks obvious when I play other games with sounds, it does add a lot.
For the goblins it is instant explosion and for slime there is a small animation before it explodes. I never got around to deciding which is better, but I think hit markers would be the most obvious.
Thanks a lot for playing!