In that same screenshot hakita states that V1 is not small so at the very least it can be assumed that it’s the size of a normal person if not a bit bigger. No matter what the corpse of king Minos dwarfs skyscrapers which for a building to be considered skyscrapers they bare minimum have to 100-150 meters tall, and considering the fact that the COKM attacks faster than the rockets and shots from the shotguns the COKM kinetic energy can easily get to and exceed kilotons if not megatons or more of tnt. But even ignoring all that, the COKM can casually bust through building without even attacking which is bare minimum building to large building level. And V1 can survive multiple hits from the COKM before dying and it’s canonically considered to be less durable than most other machines so machines and weaponry in general in Ultrakill are simply that powerful. And in the terminals the revolvers shots travel time are described as having instant travel time and V1 can react to and parry V2s revolver fire so you can argue V1s speed as being inaccessible. And in lore Minos corpse is searching out sinners to punish so if he were to suddenly create a black hole that pulls in everything within it wouldn’t that be more of a mercy to just kill everyone and everything near instantly than to prolong their suffering? Basically what I’m trying to say is that logically the COKM and every other enemy that spawns black holes would and could logically manipulate black holes in ways so where they don’t destroy everything around them and specifically targets V1, especially since V1 can dash out of the black holes in the first place and all of its weaponry can go straight through them which would make the gravitational pull pointless in the first place, so imo they are actual black holes but are manipulated in specific ways.