Mangle, while not being a major character during the first 3 seasons, revealed to be an antagonist during Season 4 and a traitor to the animatronics she pretended to be friends with for decades. She is known for being a good liar and has shown willingness to give anything for Nightmare and their shared goal of destroying humanity. She is currently on Nightmare's side, tasked with hunting down Toy Chica.
Freddy Fazbear's Pizza II (1987)[]
Mangle was built from the previous generation animatronic's parts in 1987. She was then given a part of Puppet's soul together with the other Toy Animatronics. Mangle had her own room in the attraction where kids would come to play with her, however, their idea of playing was tear Mangle apart and rebuild her endoskeleton in some ridiculous ways. In their first days, she was met with Toy Chica who wanted to befriend her despite how she looked. Mangle was unhappy at how she was treated by the humans, and one day, while she was roaming the Pizzeria, she found a mysterious object. Upon touching it, she met Shadow Freddy, who was trapped in Freddy's head and was only visible to him, and the ones who touch The Artifact. He told her his backstory and offered to team up and get revenge on humanity. She agreed and decided to work with him, without anyone knowing.
Later she got caught within The Puppet/Golden Freddy conflict, after being attacked by mind controlled Chica. She was saved by Foxy who fell in love with her, together she helped him defect from Golden Freddy's side. Mangle did have feeling for him too, however Shadow Freddy told her she shouldn't get into a relationship, so she simply pretended to be with him for the entire time. To execute the plan Shadow Freddy needed Mangle to get the 2nd Pizzeria to somehow close down, and get the owners to move them all the the 1st Pizzeria. They took advantage of the conflict, and after a clash between the two sides. Mangle also put the Artifact next to Freddy to cause him hallucinations and meet Shadow Freddy in a dream. Thanks to that they cause cause major escalations in the conflict that led to a clash between Golden Freddy and Puppet, the death of the toys, and Mangle killing the Night Guard at te=he heat of the moment, to ensure the Pizzeria will close down. Her actions guaranteed the closure of the Pizzeria
Freddy Fazbear's pizza III (1993-2016)[]
6 years passed and unlike Shadow Freddy and Mange planned, the owners opened a 3rd Pizzeria instead of using the 1st one. This decision greatly delayed their plan. They had to come up with a way to ruin the new Pizzeria and decided to use Springtrap who was trapped in the basement, and get him to wreak havoc in the Pizzeria. The plan was not simple because Springtrap needed a new endoskeleton to move, a mind control device powered by The Artifact planted in his head, and a way to access the basement in the first place. To do that, she took advantage of a new replacement Night Guard who came with a shotgun. She approached him to get shot, that way the animatronics will have to take her to the backroom to repair her. Once she was repaired she pretended to have lost her memories and was left alone in the Backroom, granting her free access to the basement's door. She took the mind control device and headed down to the basement, then successfully planted it in Springtrap's head. As a bonus, Foxy who wanted revenge for Mangle getting shot, killed the Night Guard and stuffed his dead body inside of Springtrap's suit, unknowingly solving for her the problem of finding a skeleton for him.
Their next step was to wait for Springtrap to be released, but the animatronics had no intention of doing that. Eventually, when Golden Freddy decided to go down to the basement to kill Golden Freddy, Shadow Freddy gave Springtrap a power boost to overpower Golden Freddy and begin his rampage. Mangle played along and made Springtrap damage her too to avoid suspicion. With that, after 23 years, the 3rd Pizzeria closed.
Fazbear's fright (2016)[]
The plan took a wrong turn, again. Instead of taking them to the 1st Pizzeria they took them to a new horror attraction called Fazbear's Fright, with Springtrap as the main attraction. They had to use Springtrap for longer. He made Springtrap turn some of the animatronics into phantoms and follow the child audio that's being made through the office. At the same time. Mangle also turned into a phantom, most likely to have an easy time working without being noticed or questioned. She used the ball to became material.
they also had a plan for the animatronics who weren't phantoms. Mangle used the ball to give Bonnie a dream where he meets Shadow Freddy in disguise of Golden Freddy, and tells him how to defeat Springtrap, save the phantom, and Toy Chica who was dying. Eventually the animatronics managed to save the phantoms and revive Golden Freddy, but as they wanted to return to the 3rd location, Mangle could not let that happen so she teleported to there and set the building on fire. Thanks to Mangle's actions, their plan finally worked and the owners moved the animatronics to the 1st location, where they wanted to be all this time. Springtrap removed Shadow Freddy's mind control device, he and Golden Freddy put the phantoms back in their body and all of the animatronics were united in once place.
Freddy Fazbear's Pizza I (2020) Nightmare's arrival[]
Mangle and Shadow Freddy made it through their final phases of planning his arrival. Mangle started to remove her suit and change her voice while meeting with him, so her identity will remain hidden in case she is seen. When the day came in 2020, she programmed an Endoskeleton that will pretend to attack her and confront Freddy to release Nightmare. The plan worked well, Mangle pretended to have broken legs and crawled toward the main room where she made up a story for Toy Chica and Puppet who came to help. While she was there, an explosion was heard. Everyone gathered in the main room, when Freddy was violently tossed out of the kitchen doors, following Shadow Freddy's entrance. After revealing to everyone that he was Nightmare all along, and taking his part of the soul from everyone, the big moment where the identity of the traitor was revealed.
Everyone was shocked when Nightmare called his helper and Mangle stood up and came to stand by his side. Angrily they all asked her why she did that and she explained her reasoning and how they executed their whole plan. Springtrap was extremely angry at how she caused him the pain from the mind control device. He approached and attacked her with the intention to kill. Before he could kill her, Nightmare released a shock wave that pushed the animatronics away. Mangle lost her ear and her eye got damaged from Springtrap's attack. Mangle alerted Nightmare who was just summoning his minions, that some of the animatronics are escaping and locking themselves in the kitchen. Eventually that group escaped.
The loyalty test[]
Mangle stayed with Nightmare and waited for further instructions. While having a nap in her usual spot she had a dream of Toy Chica decapitating her with a knife, she woke up and sighed in relief. Later she was called by him to see a surprise. When she came, she saw Foxy, knocked out and tied up. Nightmare woke him up and he was heartbroken to find out Mangle was the traitor. Nightmare tasked her with proving she is loyal to him by killing Foxy and gave her a sword to do the task. At first Mangle seemed undecided, but eventually impaled Foxy with the sword. He looked at her with great sorrow before passing away. Nightmare congratulated her on proving to be loyal, and as a reward, gave her great powers that turned her from white and pink to black and yellow, and her eye color changed to red.
Later while she was napping again at her spot in the prize counter room, she saw Toy Bonnie sneaking and went back to sleep, ignoring him. Nightmare Chica who was looking for the escapee asked her if she saw anyone but she claimed not to [It is still debated whether she let him go out of mercy/guilt, or if she was just playing along with Nightmare's plan that involved letting him sneak all the way to the kitchen]. Once Toy Bonnie got caught, Nightmare got access to the teleported and left Mangle alone in the Pizzeria with Nightmare BB while he takes the rest of his minions to go after the escaping Animatronics.
During their absence Mangle woke up from another nap after hearing loud noises from the Kitchen. She went to check it out and found Nightmare BB decapitated on the floor, with the intruder who killed him nowhere to be found. She took him to the locker room and repaired his head then checked the security cameras and saw a recording of Toy Chica walking around the main room. 3 weeks passed and Mangle decided to teleport to Nightmare and warn him about the police that was coming to check on the Pizzeria. Upon their return Mangle showed Nightmare BB's body to Nightmare. At first she was blamed by Plushtrap for killing him, however Shadow Freddy revealed that it's impossible because he didn't give her the powers to kill other Nightmares. To clear her name she showed him the footage of Toy Chica. Nightmare didn't think much of it and they all went to prepare for the arrival of the cops. They were dealt with easily, so Mangle joined the Nightmares who all teleported to take over the factory, while the police is distracted with investigated the new murders in the first location.
The factory and the Nightmare war (2020-2120)[]
Mangle teleported with the Nightmares to the Factory, they took over it and brainwashed all the employees to work for them, and they created a large army consists of multiple units, so they can take over the world. Mangle took part in the Nightmare war, massacring humans alongside Nightmare. Mangle took the lead on the effort to find Toy Chica and figure out her plans. In 2120 when they received clear indications that Toy Chica is in their timeline, she used Chica to plant a trap for her by sending a Hunter to where Toy Chica is, and giving her coordinated to find Chica. The plan worked and Toy Chica showed up to the 1st Pizzeria.
The duel[]
Mangle waited for Toy Chica to arrive and as she was talking to imprisoned Chica, Mangle revealed herself from the Shadows. That was her first encounter with Toy Chica since the reveal of her betrayal. Mangle, armed with the sword and the powers Nightmare, called Toy Chica to surrender, and as she refused, the two began their duel. She clashed with Toy Chica who also had a sword and to her surprised was trained. At some point of the duel Mangle managed to temporarily overpower Toy Chica, however, after provoking and angering her, Toy Chica's eyes began to glow and she approached Mangle menacingly, and blocked her attacked with little effort. Mangle was overpowered and tossed at the wall. Upon trying to grab her sword Toy Chica cut her hand off. She was about to deliver a fatal blow on Mangle, but in a desperate move she activated a security mode that called a Hunter who would lie down on her and take the hit so Toy Chica won't penetrate into Mangle. Mangle was saved but Toy Chica kept trying to insert the sword deeper.
Eventually Chica who managed to escape the cage, woke Toy Chica up from her trance and the two left Mangle alone. Mangle got up as they ran toward the hallway and locked the door behind them. Mangle commanded the backup soldiers to deactivate the door, Upon opening it, Chica and Toy Chica ran toward the room next to the security office. Chica locked Toy Chica inside and broke the one sided control panel so Mangle won't be able to get to her. Before Chica could reveal details about Project A, Mangle stabbed her in the back, killing her. She then called for a destroyer to blow up the door and get to Toy Chica, however they were too late and Toy Chica teleported away. To her relief, even though Toy Chica escaped she dropped her time travel device.
Receiving new instructions from Nightmare[]
Mangle had her hand fixed and then got up to the roof where Nightmare waited for her, angry at how she got humiliated in the duel with Toy Chica after seeing everything in the cameras. He wanted to punish her for failing, however she quickly turned up his mood when she gave him Toy Chica's device. He joyfully destroyed it and instructed Mangle to find Toy Chica, kill her, and take her sword so he can use its power for the project. It didn't take long for Mangle to locate Toy Chica who was hiding in the old Freddy Fazbear's Pizza II. She took Nightmare Foxy, General Creek, Behemoths, Keepers, Hunters and Destroyers to raid her hideout. Upon their arrival they simply bombed the place into oblivion, but after scanning the ruins the found no signs of Toy Chica being there. Mangle wanted to continue the hunt, however, she was immediately called back to the Stronghold. She instructed Nightmare Foxy to catch Toy Chica, up to him if dead or alive, and returned to Nightmare.