Squirrel !

The first thing that stuck out to me was the muffin that Kinger had - it seems like a fairly innocuous choice to cut it in half, until you remember Queenie.

Kinger, before he lost his mind, probably shared a lot of things with her.

Out of habit, it looks like he cut a slice for her.

The second thing was soon after, when Kinger mentions Scratch - specifically referring to him having a brain tumor.

In episode 7, Caine tries to explain how modifying people's brains doesn't end well... And only then does Kinger mention Scratch.

I think Caine might've tried to manually remove the tumor. Using the game files to try to actually delete it, only for his mind to fall apart because of it.

Throughout the series, Ragatha's button eye has been a striking detail of her design, and one that's frequently referenced and drawn attention to, whether her button falls off, or she gets stabbed in that eye - not to mention the association she's had with sharp objects in general from time to time.

Episode 6 also alludes to some implied verbal abuse from her mother.

But when you put those two ideas together, plus Ragatha's nightmare scene in episode 8, it's easy to put these together - it's possible that Ragatha lost an eye before entering the circus - and perhaps her mother was the one who caused it.

And then this. On Kinger's screen during Caine's total breakdown, you can actually see him communicatimg with him; taunting him, teasing him, and, towards the end, seemingly using his real name.

Grant.

And despite everything, in his last moments Caine begs, just for a moment, he turns back into his old self. He's realized that he's gone too far, and is now facing the repercussions.

He might not know it was unintentional, but he realized exactly what was happening.

Like all the NPCs that he created, and deleted without a second thought, he is faced with the same oblivion. Deletion.