I played Hollow Knight (actually I still playing, just want 100% befor ending) and I swear god, this thicc boys was one of the the real pain for me in basic game...
Random and multiple boss bruh
Worst may be only shiny moth I think...

But I have to say this boss..es have very nice design, I love them shapes, they such cute death balls :^)

I add "thicc" bc i dunno it's just look cool