I thought I was imagining it, but rewatching it, I don't think I am.
Anyone else notice this? It sounds sort of like a jumpscare scream.
You can see him in the backgrounds of the 1982 scenes before Charlotte goes to save the boy,
and you can see him in the newspaper in the opening credits, the one announcing Charlie's death. the 1982 dated newspaper.
Now granted The Toys are also from 1982 in this version,
BUT
The movie also shows that BB is not one of the toys, multiple times.
The computer Mike boots up only shows the four toys out and about, even though BB was already on the move.
The opening credits never show BB with the other toys.
So BB is not one of the toys.
And don't you know but BB didn't attack The Spectral Scoopers either.
BB Mystery deepens (I'm calling it now, BBGarrett! (Maybe Garrett can just control all the BB in the FNAF movies the way Charlie can control all the Puppet plushies? /onlyhalfjoking) )
Chica's Party World in SOTM seems to have already been operational by 1979 (with merchandise and cutouts and designs and stuff) while the other three classics weren't developed until a bit later (the FFP segment is a lot more "raw" then the other one)
While there is a Chica animatronic down there, the character was the "first" to be conceptualized.
Rewatching it, he stands still in place, doesn't even try to run away or react when Mike is wrenching his head off. He doesn't even flinch or squirm, nothing. And he clearly was at least sentient in earlier scenes given he follows Mike into the office and peers over his desk.
As the resident BBVictimer, I propose that Garret is somehow connected to this version of Balloon Boy as well and his eyes glowing was not him intentionally sabotaging Mike, but rather undergoing some kind of trance, likely ghost-trauma related.
Also the static that comes from the loudspeaker almost sounds like a staticky scream?