Whats the hardest boss you fought so far?

Stuck at this rat looking mf for 4 days, i could kill all bosses so far in a day or two💀🙏

Remember someone said nameless king has stupid hitbox so he maybe gonna be common answer

Stuck at this rat looking mf for 4 days, i could kill all bosses so far in a day or two💀🙏

Remember someone said nameless king has stupid hitbox so he maybe gonna be common answer