Very cool concept! I really like the crisp movement and the aesthetic you got on here. missed sounds and music tho.
I think the best strategy is to keep running on the boarder without attacking so you dont expand healt. was able to survive for more than 5 minutes like that, but then game started lagging due to entity quantity lol. I think there is a very good potential here - but at current state I am not sure if I "get" the main loop, since attacking seems to be sjust shortening my life haha. I do think it it very on point with the theme tho!