DISCLAIMER: I do not intend to insult or belittle anyone who does believe the FNAF 4 bite is the Bite of '87. If you do have a legit and valid reason for thinking it is the Bite of '87, then fine! Believe what you want.

All on its own, it would certainly be an understandable conclusion to think that the FNAF 4 bite was the Bite of '87, but only at first glance.

Of course, the two details nearly EVERYONE seems to pay attention to from Phone Guy's Night 1 phone call (FNAF 1) was the fact that the bite took place sometime in 1987, and that the bite itself resulted in the loss of the victim's frontal lobe.

Now, the bite itself isn't the problem, because the phone call never specifically states whether or not the animatronic responsible bit off the victim's frontal lobe, or if it caused such a damaging injury that the victim's frontal lobe had to be removed to save their life. So yes, if you argue that this could be the Bite of '87 based on this info, that's understandable.

But those two details aren't the problem. It's the other details that don't entirely add up with these ones. AND THEY'RE BIG DETAILS.

"So, just be aware, the characters do tend to wander a bit. Uh, they're left in some kind of free roaming mode at night. Uh...Something about their servos locking up if they get turned off for too long. Uh, they used to be allowed to walk around during the day too. But then there was The Bite of '87. Yeah. I-It's amazing that the human body can live without the frontal lobe, you know?"

The first major detail is "the human body can live". This supposedly means that the bite victim of 87 must have survived getting bitten by the unknown animatronic. Why include that little detail if the victim didn't survive?

And if I'm not mistaken, at the very end of FNAF 4, after Crying Child got bitten by Fredbear, we see a cutscene with the world around him slowly fading away. And if you need even more proof, if you search up the FNAF 4 ending cutscene, at the very end, WITH sound, you can hear a very faint beeping noise. What is this beep noise, you may ask?

The sound of a heart monitor reaching 0. In terms of hospital language, the sound of death. Crying Child died at the end of FNAF 4. The fact that this sound was put in at all should be accounted for.

And let's get one thing straight before you come at me: Being brought back from the dead does not count as surviving the actual event, since he technically did die from the event, but if he were to be rebuilt, even as an animatronic without a frontal lobe, he still technically didn't survive the first time getting bitten. Now, you can freely debate about this.

The second detail that I'm confused over is the EFFECT of the Bite of '87 on Fazbear Entertainment. We know that before the event, the animatronics could run around freely. If you need actual proof, listen carefully to Phone Guy's message on Night 1 in FNAF 2.

"They've spent a small fortune on these new animatronics. Uh, facial recognition, advanced mobility, they even let them walk around during the day. Isn't that neat?"

Now, FNAF 2 being a prequel is pretty much old news by now. But that's not the point I'm making here. My point is that whatever the Bite of '87 was, it had something involving an animatronic, that animatronic then proceeding to bite a victim in the frontal lobe region, AND something happened that made Fazbear Entertainment officially cut off the animatronics from walking around freely during the day.

The thing that doesn't make sense about FNAF 4's Crying Child Bite is HOW he got the bite in the first place. For anyone who doesn't know, Michael, the man believed to be the Crying Child's brother, gets his friends and bullies Crying Child. They then decide to humiliate him even further by trying to get Crying Child to "kiss" the Fredbear animatronic.

What could possibly go wrong?

E V E R Y T H I N G.

Because when Michael and his friends lift up Crying Child to get him to "kiss" Fredbear, they place him in Fredbear's mouth, which immediately malfunctions and crushes the Crying Child's skull faster than you can say "Tyrannosaurus Rex". And Michael stands there in total shock and disbelief, ashamed of what he had just done.

Now, let's theoretically say that this IS the Bite of '87. Why would we need to get rid of the animatronic's ability to wander around during the day when the accident had nothing to do with them wandering around? Fredbear and Springbonnie were just minding their own businesses, following their original programmed movement on stage, when Michael got the bone-headed idea to shove Crying Child into Fredbear's mouth. Fredbear wasn't walking around in free mode when this accident occurred. Realistically speaking, it would make more sense to remove the bite feature instead of getting rid of the daytime movement and keeping the bite feature.

So why would Fazbear Entertainment get rid of the animatronic's ability to walk around during the daytime, when the accident that occurred here didn't really have anything to do with the "freeroam" issue?

But hey, that's just a theory! A game theory! Thanks for reading!