Springtrap (Five Nights at Freddy's)

"... I have an even better surprise for you, and you're not gonna believe this - we found one. A real one..."

- Phone Dude on the second night. "Help Me!"

- FNaF 3's 1.031 Update. "What a deceptive calling. I knew it was a lie, the moment I heard it, obviously, but it is intriguing nonetheless..."

- Springtrap calling out Cassette Guy's plan.

Springtrap, or Spring Bonnie, is the main antagonist of the 2015 horror game, Five Nights at Freddy's 3, and the 2017 horror game, Freddy Fazbear's Pizzeria Simulator. He is the only character in the third game that will kill the player as opposed to just jumpscaring him/her. His original identity was William Afton, the killer responsible for the events of the FNAF series), making him the overarching villain of the entire franchise.

He also appeared in Five Nights at Freddy's 4, where he played a minor role as a mini game figure, and briefly in Five Nights at Freddy's: Sister Location during one of the endings to the Custom Night update.

In the Pizzeria Simulator, he is voiced by PJ Heywood.

Appearance
Springtrap is an old model of a Bonnie suit, withered and falling apart. The fur has gone from a golden yellow to a sickly olive. There are many holes and tears in the suit, exposing parts of the rusted metal endoskeleton as well as wires. His mouth is fixed in a grin, with the teeth being chipped and yellowing. His eyes are a pale grey and usually fixed in a forward position. His ears are falling off and the left one is missing the top half altogether.

Rare boot-up screens for the game show what seems to be human remains inside of Springtrap's suit. They consist of dark pink chunks. Human innards can also be seen through the hole in the torso.

In Five Nights at Freddy's 4 during the minigames, Springtrap (then known as Spring Bonnie), appears onstage, intact, next to Fredbear.

In Pizzeria Simulator, Springtrap has been damaged even further from the fire, however this has made him no less dangerous or resourceful. Much more of Springtrap's endoskeleton is now exposed with the remaining portions of his animatronic suit appearing similar to parts of Golden Freddy's withered design from FNAF 2 (for example his upper head seems to be shaped like that of Golden Freddy). His ears appear to have deteriorated so much that only a stub with a couple of wires remain and also a part of his left arm is missing.

Behavior
Springtrap moves around the attraction in a way that seems to be taunting the player, as he will stare directly at the camera, hide in plain sight, and stare at the player through the office windows and doors. He also can be drawn by sound, so the player must use audio clips in various rooms to lure him there. However, the alarm in the office can also attract Springtrap. When he attacks the player, he steps into the office via either the door or the right vent, slinking up to the player in a human-like fashion.

Five Nights At Freddy's 3
Springtrap was found to be an addition to Fazbear's Fright: The Horror Attraction. Springtrap became active at night, presumably possessed by the spirit of the killer. He attempts to get into the office and kill the night shift security guard.

Fazbear's Fright later burned down, and it is unknown what happened to Springtrap. However, if one brightens up the newspaper article at the end of Nightmare mode, Springtrap's head appears behind the Freddy doll.

Five Nights at Freddy's 4
Springtrap makes a minor cameo alongside William Afton.

Five Nights At Freddy's: Sister Location
In Sister Location, he appears in an ending cutscene after the Custom Nights, revealing himself to still be alive after Fazbear's Fright burned down, with Michael Afton's voiceover playing in the background, saying that "they" (either the Circus Baby Gang or the Ghost Children) confused him for his father, and he finally found "her" and put her back together (presumably his sister/Baby/both) and that he should be dead but isn't, and that he blames his father (William) and is now coming to find him. The cutscene ends with Springtrap popping up among the ruined Fazbear's Fright.

Freddy Fazbear's Pizzeria Simulator (FNAF 6)
Springtrap returns in Freddy Fazbear's Pizzeria Simulator and has deteriorated to the point where much more of his endoskeleton has been exposed. Springtrap is one of the animatronics who received a call to gather at the player's new pizzeria. Unlike the other animatronics however, Springtrap suspected the call to be false, but decided to go anyway just out of curiosity. He becomes one of the hazards in the game, either attacking the player from one of the office vents or attacking while doing audio response tests on him. On the final day, it's revealed that the Cassette Man was responsible for sending out the call to the animatronics and had lured them all into a trap. Springtrap then presumably meets his final end when he is incinerated with the other animatronics, during which the Cassette Man tells him "the darkest pit of hell has opened to swallow you whole, so don't keep the devil waiting old friend."

The Silver Eyes
At a Birthday party, the five children were visited by Bonnie, one of the two animatronics (actually William wearing the Spring Bonnie suit). He lured them into a back room where he brutally murdered them and hid their bloodied corpses inside soon-to-be-released animatronics, including Freddy Fazbear. The children's spirits remained trapped in the animatronics.

In 1995, Charlie tells John that before moving to Hurricane her father owned another restaurant called Fredbear's Family Diner, which featured two performing robots, yellow versions of Freddy Fazbear and Bonnie the Bunny. William reveals that the robots are possessed by the vengeful ghosts of his victims, and boasts that they will hunt down and kill any intruders. He attacks in the yellow Bonnie costume, but Charlie activates its spring locks, killing him.

As the robots drag William's corpse away, Chief Burke escorts everyone out of the mall. The friends go their separate ways, and before leaving Hurricane, Charlie visits her father's grave, remembering a happy day she had with him.

Trivia

 * As of version 1.031, Springtrap now makes footsteps and moaning noises when he moves.
 * Some people have assumed that the moaning noise is Purple Guy inside of Springtrap trying to talk.
 * He is named after the trap device of the same name which is used for catching animals during hunting and how he is a Springlock suit. This is how he "trapped" Purple Guy inside.
 * Occasionally, when the game starts up, one of three images of Springtrap revealing the Purple Guy's mummified corpse inside of him may appear, similarly to the eyeless Bonnie screen from the first game and the eyeless screens from the second game.
 * Before having his name confirmed, the most common name for this animatronic coined by fans was 'Golden Bonnie' as fans believed that Springtrap was somehow connected to the similar-looking animatronic Golden Freddy, while also retaining a resemblance to Bonnie.
 * Two more common fan-given names were 'Hybrid' and 'Salvage', for fans believed that Springtrap was made from the parts of dismantled animatronics.
 * Coincidentally, Springtrap is a hybrid - just not the way fans theorized.
 * Another coincidental detail is that Springtrap is implied to have been "salvaged" after the restaurant was shut down.
 * In the promotional photo for Sister Location, Circus Baby appears to be smiling at someone off-screen, and the figure reflected in her nose looks suspiciously like Springtrap - this led fans to believe he would return in Sister Location - while he was not the main antagonist, he did appear in an ending cutscene after the Custom Nights, revealing himself to still be alive after Fazbear's Fright burned down and foreshadowing his return as the main antagonist in Pizzeria Simulator.