The Bite of '87 remains the most debated and influential incident in the history of the Five Nights at Freddy’s (FNaF) franchise. Originally introduced as a throwaway line of dialogue to explain a gameplay mechanic, it evolved into a cornerstone of a decade-long mystery that defines the dark legacy of Fazbear Entertainment. This incident didn't just cost a restaurant its reputation; it fundamentally changed how animatronics were allowed to function in the presence of the public.

The Origin: A Phone Call from the Past

To understand the Bite of '87, one must look back at the original security footage from the first game. The incident was first brought to light by the character known as Phone Guy (later identified in supplementary materials as Ralph). During the very first night of the player’s tenure at the Freddy Fazbear’s Pizza location in the 1990s, Ralph mentions a historical event to justify why the animatronics are no longer allowed to roam during the day.

His exact words were: "...they used to be allowed to walk around during the day too. But then there was the Bite of '87. Yeah. It’s amazing that the human body can live without the frontal lobe, you know?"

This single piece of information established several key facts: the event occurred in 1987, the victim survived the initial attack, and the injury involved the complete loss of the brain's frontal lobe. This specific neurological detail is crucial, as the frontal lobe is responsible for voluntary movement, expressive language, and managing higher-level executive functions. The survival of the victim was framed as a medical anomaly, adding a layer of visceral horror to the establishment's history.

The 1987 Setting: A New and Improved Disaster

While the mention occurred in the first game, the actual events surrounding the incident are tied to the second game in the series. Five Nights at Freddy’s 2 is a prequel, set in 1987. This location featured the "Toy" animatronics—sleek, modern versions of the original cast equipped with advanced facial recognition software linked to criminal databases.

The restaurant was marketed as a safer, family-friendly environment compared to previous iterations. However, throughout the week leading up to the incident, reports surfaced of the animatronics behaving erratically. They interacted normally with children but became increasingly aggressive toward adults and staff members. This behavioral shift is a significant precursor to the eventual attack.

Leading Suspects: Who Actually Did It?

Because the creator, Scott Cawthon, never explicitly animated the event or named the culprit in a definitive cutscene, the community has relied on environmental storytelling and gameplay mechanics to narrow down the suspects.

The Mangle

For years, Mangle has been the primary suspect. As a "take-apart-and-put-back-together" attraction, Mangle was constantly dismantled by toddlers and poorly reassembled by staff. This could have led to severe mechanical instability or resentment toward the patrons. Mangle’s jumpscare in the second game specifically involves swinging from the ceiling and biting down directly on the player's head area, where the frontal lobe is located. Furthermore, Mangle has the largest and most articulated jaw among the Toy animatronics, making the physical act of removing a frontal lobe more plausible.

Withered Foxy

Some theorists point toward Withered Foxy. In the original game, Foxy is kept in Pirate Cove, which is marked as "Out of Order." Many assumed this was a direct result of him being the biter. In the second game, Withered Foxy is incredibly aggressive. However, the counter-argument is that the Withered animatronics were kept in Parts/Service and were not supposed to be in the public areas during the day shift when the bite allegedly occurred.

Toy Chica

An overlooked suspect is Toy Chica. One of the most eerie details of her design is that she removes her beak when she leaves the stage. Without the beak, her endoskeleton jaw is exposed, featuring sharp, serrated teeth. Her voice lines in later iterations of the series, such as "Where’s my beak? Lodged in your forehead, of course," have been interpreted by some as a subtle nod to the 1987 incident.

Withered Freddy

Evidence on the original Freddy Fazbear model includes faint handprints on his face, suggesting someone tried to push his jaw away. While this is likely related to the "Missing Children Incident" or a different struggle, his sheer jaw strength makes him a physical candidate, though he lacks the mobility of the Toy models during the 1987 daytime hours.

Identifying the Victim: The Fate of Jeremy Fitzgerald

Evidence suggests that the victim was likely a security guard rather than a child. On Night 6 of the second game, Phone Guy tells the protagonist, Jeremy Fitzgerald, that he is being moved to the day shift for one last event: a birthday party. He is specifically instructed to stay close to the animatronics and ensure they don’t hurt anyone.

Given that the restaurant was shut down immediately after this event and the Toy animatronics were scrapped due to "malfunctions," it is widely believed that Jeremy was the one who received the bite while attempting to protect the guests or while being targeted by the animatronics' faulty facial recognition. This explains why the animatronics in the first game are so hostile toward night guards—they associate the uniform with the person who was involved in the 1987 tragedy.

The Bite of '87 vs. The Bite of '83

It is vital to distinguish the 1987 incident from the "Bite of '83" depicted in the minigames of the fourth game. For a long time, fans confused the two, but they are distinct events with different circumstances:

  1. Date: One occurred in 1983 at Fredbear’s Family Diner; the other in 1987 at Freddy Fazbear’s Pizza.
  2. Animatronic: The 1983 incident involved Fredbear, a springlock suit. The 1987 incident involved a model from the 1987 cast (likely Mangle or a Toy model).
  3. Outcome: The victim of the 1983 bite (the Crying Child) died from his injuries. The victim of the 1987 bite survived without their frontal lobe.
  4. Cause: 1983 was an accident caused by bullying (shoving a child's head into a mechanical mouth). 1987 was a malfunction or an intentional attack by an animatronic on an adult.

Corporate Consequences and the End of an Era

The Bite of '87 was the final nail in the coffin for the "New and Improved" Freddy Fazbear’s Pizza. The financial fallout was immediate. Fazbear Entertainment, true to its history of negligence, scrapped the expensive Toy line and moved back to a much smaller budget with the older models.

More importantly, the incident led to the permanent ban on "free-roaming mode" during the day. The management decided that the risk of a servo locking up or another aggressive outburst was too high. By the time the events of the first game take place, the animatronics are treated as stationary props during the day and only allowed to move at night to prevent their joints from seizing.

Recent Revelations and 2026 Context

As of 2026, new lore from the official interactive novels and the expansion of the cinematic universe has added layers to this mystery. In the book The Week Before, there are references to Foxy's history and the specific phrasing that he "never bit any kids," which subtly reinforces the theory that the victim of the 1987 bite was indeed an adult, likely Jeremy Fitzgerald.

Furthermore, the psychological implications of living without a frontal lobe have been explored in various fan-driven and official horror narratives. The loss of impulse control and emotional regulation in the victim would have made their survival a haunting, hollow existence, fitting the grim tone of the series.

Why the Mystery Persists

The Bite of '87 is a perfect example of effective environmental storytelling. By never showing the event directly, the creators allowed the community's imagination to fill in the blanks. The horror of a bright, colorful birthday party turning into a bloody surgical nightmare is more impactful than any rendered cutscene could be.

Whether it was Mangle’s desperation, a glitch in the facial recognition software, or something more supernatural, the Bite of '87 stands as the moment where the "magic" of Freddy’s died, replaced by a legacy of safety restrictions, lawsuits, and a lingering fear of what happens when the robots get too close.

In the grander scheme of the timeline, this incident serves as the bridge between the experimental heights of the 80s and the decaying, haunted atmosphere of the 90s. It is the reason the doors are locked, the reason the animatronics stay on stage, and the reason we are told, over and over again, to stay away from the mascots.