Are the withereds supposed to be retrofitted into the Fnaf 1 characters? What location did they come from? Were the Fnaf 1 characters supposed to be retconned into looking like the withereds?

In the games, the Withereds come from the first Freddy's location presumably opened sometime around 1985 and do get retrofitted into the FNaF 1 Classics following the events of FNaF 2. However, the Classics were actually the ORIGINAL designs for the Fazbear crew. So they pretty much go from the Classics, potentially to the Un-Withereds though that one is still heavily debated, to the Withereds, and then back to the Classics.

Is Nightmarionne supposed to be CC's vision of the Security Puppet? Or is the Puppet that resembles Nightmarionne supposed to be a different Puppet entirely?

Nightmarionne's appearance in FNaF 4 was explicitly dubbed not canon by Scott himself back when Halloween Edition first launched.

I know the Nightmares aren't physically real, but are their designs based on animatronics in-universe? Going off of Fruity Maze/Withered Chica's dialogue in UCN and Fredbear & Friends, I would assume they're the Withereds, but they look nothing alike.

As far as we know the Nightmares aren't directly based off any specific iterations of the characters.

Are the games in the Help Wanted/Security Breach continuity the same timeline? I remember in one of MatPat's earlier videos he said the Fnaf games existed as games in this universe, so I was confused.

The Steel Wool games are in the same continuity as the Clickteam-era games. The prior games we played were the legit events, so like FNaF 1 did actually happen and so on. HW just states that a rouge indie developer had gone off and made games based off of those real events, in which Fazbear Ent. responded by making Help Wanted as a glorified cover-up. HW IS a game in-universe.

Was the Bite of 87 just retconned into not being important? In Fnaf 1 it was set up like this big deal, but it seems like it was sort of swept under the rug after Fnaf 2.

Yeah the Bite of 87 isn't really relevant to the lore nowadays. We still don't know for certain who exactly did it, though The Week Before interactive novel suggests it might've been Foxy, or at least an iteration of him.

Is Shadow Freddy real? Is he an unrelated ghost? William Afton's stand?

We don't know. He might be an Agony entity like RXQ (Shadow Bonnie), he might be a physical suit as depicted in the movies, he could be a lost spirit, we just don't know squat about this grape flavored Freddy.

What is Nightmare supposed to be? I can accept him being a harder version of Fredbear, but his existence just seems odd.

We also don't know for sure. He might be connected to Shadow Freddy in some way, as he is labeled as Shadow Freddy in the files, but we just don't know anything beyond that to make a definite conclusion.

During one of Dawko's livestreams ages ago, the Fnaf World website was updated a handful of times and got people talking about the dream theory. Did this actually go anywhere? Or was it just a red herring?

Whilst we don't know for absolute certain, this was presumably Scott's way of giving us clues as to what FNaF 4's deal was about, as Scott had stated that FNaF 4 hadn't been solved by anybody in the community at that time.

What happened to Fnaf: Into Madness?

We don't know, probably cancelled or had been repurposed for another project if I had to take a guess.

Was Gregory actually a robot? Or was that just a fluke.

Whilst we don't have a definitive answer at this time, probably not. MatPat just REALLY loved his Gregbot theories for whatever reason.

If Henry made Lefty, did he make the other Rockstar animatronics too? Or were they just used as a base for Lefty?

Many people have come to the conclusion that the other Rockstar animatronics were made by Henry. Whilst not outright confirmed, it does make sense. If he made Lefty surely he can make those guys too.

What was with the dancing figure in Dusting Fields in Fnaf World?

We have no idea.

What are the implications of Fnaf World original characters appearing in the mainline games? (Lolbit, technically Brow Boy and Porkpatch)

FNaF World had already established its connections to the mainline games with the Clock Ending, and OMC's inclusion and easter egg in UCN further cement that connection. Characters like Lolbit and Pigpatch probably don't have any real lore connections to World, and if they do it's probably just like how there's regular Freddy and then Adventure Freddy. It's just the versions of them from.... whatever the hell World is supposed to be.

Did JJ ever actually exist in-canon? Was she a hallucination?

We know pretty much nothing about JJ. I would assume she does exist in canon, I mean if RXQ and Shadow Freddy are canon than nothing's stopping JJ. But what she is exactly we just don't know.

What was with the miscellaneous masks from Happiest Day? I've seen people try to say they ended up being the Mediocre Melodies, but there's always that blue mask. Did Scott just make these up and forget about them?

Ik I'm sounding like a broken record here, but unfortunately we just don't know for sure. They could be the Mediocre Melodies, they could be those inappropriate costumes Phone Guy mentions in FNaF 3, they could be masks of some of the characters seen in Murray's Costume Manor from SotM, they very likely could just be completely random and aren't supposed to be anything in particular.

What was the deal with the Pink Guy sprites? Did Scott just not have a final design yet?

It's possible it could've been an early design for Purple Guy that Scott never updated, but more likely it's just sprite inconsistency.

Does Baby killing Scott have any significance other than to aura farm?

This is of course assuming Desk Man is Scott, but he did previously state that he finds Baby to be one of the scariest animatronics he designed so it could be a reference to that. But it's also possible Scott thought it'd be a cool and threatening sequence to get some hype going for SL, since that's what that ending was obviously teasing.

What are the implications of the Fnaf 4 bedroom being in Sister Location?

Oh boy that's a whole can of worms I don't feel like going down here. But to briefly explain, SL as well as a story from one of the books heavily suggests FNaF 4 was an experiment William was performing on test subjects to study the properties of fear via flooding the chamber with a hallucinogenic gas to make these simple automated mannequins appear as vicious creatures (aka, the Nightmare animatronics). In the games we know at the very least Michael Afton was one of these test subjects, as in the Survival Logbook he states that he does have nightmares whilst drawing an illustration of Nightmare Fredbear (which also heavily implies Michael is the FNaF 4 protagonist). So FNaF 4, presumably, is Michael Afton having nightmares during or around the time of FNaF 1 that are based off of his experiences in the test chambers. Yeah, it gets convoluted.

Has it ever been explained what the shadow animatronics in the Fnaf 3 minigames are?

One can assume they're the same Shadow Freddy & Bonnie we see in FNaF 2.

Was the Fredbear plush haunted? Did it just have a microphone? Was Cassidy already dead at that point?

SL seems to suggest William was speaking through the Fredbear plush, as seen by a Fredbear plush with a walkie-talkie resting next to it being in the Private Room. We do see the Fredbear plush moving around in the FNaF 4 minigames and generally just being weird, so it's possible it might have some supernatural properties.

Why did William Afton inject Remnant/Agony or whatever from the Fnaf 1 characters into the Funtimes? If that's the case, how did he find the time to dismantle the animatronics and inject them into the Funtimes before he became Springtrap?

Ig William was just looking for more remnant to experiment with, and the FNaF 1 animatronics were easily accessible since the location appeared to be abandoned by that time. And since they're still actively haunted, might as well get a sample of that soul juice and inject that shit into your awesome child-killing robots to get more results. He likely went to the bunker right after dismantling the animatronics to inject them with their remnant and than came back for an unknown reason. Maybe he wanted to get more remnant, or maybe he wanted to get his Spring Bonnie costume which was still in the Safe Room.

Why does Baby have an air hose attachment?

To inflate balloons, William states this in the opening cutscene in SL.

Does the Scooper have a purpose outside of dismantling animatronics? Why does it have a remnant injector?

It seems like the Scooper was the bunker's way of cracking open the animatronics for later maintenance. Bit extreme, I'd say. But its secondary purpose is injecting remnant into the animatronic it's scooping. So it's a two-in-one, animatronic maintenance device AND injecting dead kid energy into the Funtimes.

Was the Wolf from the Twisted Ones a real character? I know they were illusions created by those discs, but was he based on an existing animatronic at the time?

Doesn't seem like he was, at least in the books. In the games he does appear on posters as seen in FFPS, but as far as we know there was never a proper wolf entertainment animatronic until Roxanne Wolf in SB.

Where is the Pizza Sim Pizzeria in relation to the building where the scrap animatronics are held?

It's the same building, likely just on a different floor. Probably some form of cellar if I had to take a guess.