interpretting お前を倒さずして、消滅などできん！ > enemy returns a while after being defeated by the mc > > mc…… …… > > enemy > > enemy charges.... i will "do it" without beating you, i can't extinguish you, makes no sense in context. What is he trying to say? thank you

>
> I can never vanish without/before defeating you!

* ` + ` is a literary way of saying "without ing". It's a literary version of or . See: vs.
* is intransitive.