Okay first let me make it clear that this is all a speculated theory. I've never played any of the FNAF games first hand and everything I know about the game I know from watching playthroughs online. This is all just my own theory and I could be completely wrong about everything I write on here, but I thought it'd be interesting to share.
The first part of my theory is when does whole thing occur. At first I thought it happened sometime after FNAF 3. Then those little minigames popped up and showed evidence that the events taking place happened long before the games started story wise. At first I found this to be confusing. That is until a thought crept into my head 'What if were seeing two separate events in time!" Then it'd make sense... sorta. The events outside the minigames are what's happening right now after FNAF 4. I mean if you think about it. The layout of the room in the minigames is different from the room you're in at night. While the minigames are memories the Character are experiencing are from a time long ago. But then why is this kid (and yes I think it's a kid just from looking at the room we're in) experiencing these things? What his connection to the animatronics? Well, for those who have seen the ending to FNAF 3 you'll remember the newspaper that said that the stuff that survived the fire would be sold off in an auction, and just what happens to be in the photo next to this article. A photo of a stuffed Freddy bear, that not only appears on the bed of present room, but also throughout the entire minigames. But before we get into that let's talk about the photo a bit more.
Now for those who don't know, rumors of FNAF 4 started shortly after the release of the FNAF 3. This was due to enhancements of the photo at the end of FNAF 3 revealing a sorta nightmare like animatronic behind the stuffed bear and that's it, we assumed that that was just a hidden teaser for the next game... But what if that wasn't all there is to it? What if that photo turned out to be a ghost photo? If it was, then that would mean that the stuffed Freddy from the photo was possessed... Though in retrospect, I'm pretty sure most of you would have already guessed that XD! But it might explain why this kid may or may not be connected to FNAF be haunted by not only these memories but also the animatronics.
Now here's one more thing, this is mostly speculation and is one of the things I'm not even 30% sure of compared to the other stuff I wrote early, but it has something to do with the famous 'Bite of '87'. Before FNAF 4 we all assumed that the bite was caused by Foxy. But with FNAF 4, I'm not so sure anymore. After thinking about it I came up with two possibilties. The first was that we were wrong and Foxy wasn't the biter of '87, but was actually the Golden Freddy Animatronic from before Foxy and the others were built. My other theory is that there were two bites from the franchise. One being Foxy of '87 where the child miraculously survived (at least that's what the phone guy said) and another way back in the game's universe caused by the Golden Freddy Animatronic where the kid (the ones from the minigame) didn't survive and the reason there's been no mention of it maybe because it was hushed up either by the owner or his brother and his brother's friends who put him in there, I can't say for sure.
Now again, I don't have any hard evidence, and a lot of this is speculation and maybe a little bit of grasping (I'm talking about the photo actually being a ghost photo). I just posted this for fun. I wouldn't mind discussing the game and getting your thoughts on it.
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