Okay, I want to figure out how many kids are on the show.
Here we have glasses boy, girl with brown hair, braids girl, and baseball boy
This has brown hair boy (I don't think this is glasses boy), black hair boy, and braids girl again. Black hair boy is definitely different than baseball boy, but I never see them together so maybe he replaces him?
Here he is again in a similar but different outfit to baseball boy. During the alphabet with buddy video that came out today, he helps the kids hop the fence (maybe this scene where buddy grabs him by the shoulder is right after? He's in the same outfit) We also know for sure that he dies bc there is a jump cut in trailer 2 (I think it's 2) where he has a hole in his chest a la kakyoin from jjba part 3
This boy who walks off and buddy turns to walk after him I think will be our first kill tho. Maybe not shown directly but implied later. Compared to brown hair boy above, he seems taller, coming up to buddy's chin where as the other boy comes up to his chest.
So on total, that's 7 kids? 2 girls, 5 boys. But we never see more than 4 kids at a time, so I think they're being replaced as they find out too much/ruin the show (idk what buddy was mad about in the buddy glide dance tho, it didn't look like anyone messed up)
Maybe at first it's covered up (on some social media post, when asked about why some kids are gone, the official buddy account says "everyone needs a break sometimes!"), but the kids know something isn't right (braids girl telling buddy she's scared. Maybe she also goes to Betty bunny when her trust in buddy wanes with that scene of her just staring at her). It's only when they talk amongst themselves and not buddy that they start to put the pieces together and try to escape together.
Also I think the cleaning video has to be them cleaning blood or something. They look scared as they're scrubbing. Plus buddy's comment "don't go in the clubhouse! I just mopped!"
Aaaaa it feels nice to theory craft. Also braids girl is final girl for sure. If anyone makes it, it's her