I can understand both sides of Ollie being the Prototype and not being the Prototype. For a child, in question, he knows a lot about the Playcare and what to do to power up the generator to transfer the red gas and doesn't warn about the gas in Home Sweet Home. On the other hand, if Poppy trust him and told her what to do and where the player was instead of isolating them in one spot so the Prototype could capture Poppy, Kissy, and the Player then it's a pretty big leap for the Prototype to just have Catnap be killed instead of just having him around. Also if Ollie was the Prototype, why tell him that he needs to run from Catnap instead of having the latter kill The Player or do it himself?
I hear Dogday screaming "NOOOO" in his jumpscare, like he was still conscious of what the little smile critters(?) were doing while possessing his body
