Some questions should be left unanswered (It's an inky black void that's seemingly limitless, but in all actuality is spherical and has a radius of approx. 2.5 kilometers. Not sure what I was expecting.)
It's The Spot. This video rather depicts the fact that The Spot looks like Minos Prime. This video is actually a repost from a behind the scenes of Spiderverse 👍
Spot is literally covered in lust layer and he didn't like that, so he tried to find a way to remove the lust layer from him. He got what he's wanted, but at a cost.