>>96488084
Cato is a child, so his grasp on things like death are tenuous. That said, he's experienced it; his parents died when he was barely five, but he's processed it more as them just... going away. In practice, he knows that killing people makes them go away forever. But there's a subconscious part of him, one he doesn't actively think about much, that thinks that there's a chance the dead could come back. That they might be out there, somewhere. Half-remembered mentions of Heaven get attached to the new phenomenon of the Idea World and the whole idea gets muddled up in his head, and now a part of him feels like he could maybe even find his parents, drifting in this otherworld.
>>96493762
Cato is clubless and remains so, because he needs the time to maintain his network in the real and idea worlds both. That said, he will show up uninvited to club meetings if he needs to talk to people in them. He tries to stay in the good graces of whoever is running various clubs for that purpose.
>>96510176
Space Alien has attached itself to Cato at a formative part of both of their lives, so they bleed into each other a fair amount. Cato becomes more micromanaging and ruthless, and Space Alien gets notably more childish, "playing around" more in tasks. The end result is they both treat any minions as far more disposable, with insubordination and disagreements rankling more.
>>96513843
Space Alien spams minions and Space Energy attacks, aiming to overwhelm. Its minions are weaker versions of itself, so they don't have much physical strength, but they quickly turn a battlefield into a bullet hell. Nightmares are prioritized to not kill, so they can be captured and used to help protect Cato, who generally stays back and shouts orders or throws various objects at whoever they're fighting.