<P> In all main games except for the fourth and fifth, the player receives a telephone voice message from a previous worker, or owner of the location . These "phone calls" act as a tutorial to the player, and usually go through several gameplay mechanics, and outline the backstory of the players' location . In the first and second game, the voice heard in the messages remains the same, while in the third game, it holds a strong Californian accent . Sister Location uses something similar, an A.I. voice which acts as a tutor for the player, although it is not from a telephone . Phone calls from the first game can be heard in Five Nights at Freddy's 4, albeit only as an easter egg . </P> <P> In the first three main games, the location in which the player character is based in closes down shortly after the end of the game . In the first Five Nights at Freddy's, the location is said to close by the year's end, due to a "tragedy that took place there many years ago". The location of Five Nights at Freddy's 2 closes down due to malfunctions of the animatronics . Five Nights at Freddy's 3's location closed down after it was unexpectedly burnt down . In Sister Location's case, the location in which the game's story is centered around, "Circus Baby's Pizza World", was closed down prior to the game, apparently due to gas leaks . One possible ending of Freddy Fazbear's Pizzeria Simulator involves the player's restaurant being burnt down to destroy the animatronics, leading the entire company to be put out of business . </P> <P> The main characters in the Five Nights at Freddy's series are generally security guards working at a Freddy Fazbear's Pizza or related location . None of them have distinct personalities and most of the gameplay takes place from their point of view . In Five Nights at Freddy's, the guard's name is Mike Schmidt . In Five Nights at Freddy's 2, the guard is named Jeremy Fitzgerald for all of the main five nights and the bonus sixth night, though he is replaced in the custom seventh night by another guard, Fritz Smith . The security guard for Fazbear's Fright: The Horror Attraction in Five Nights at Freddy's 3, is unknown . The main character of Five Nights at Freddy's 4 is an unnamed boy, who experiences nightmares of the animatronics . The player in Five Nights at Freddy's: Sister Location is a technician who has their name jokingly autocorrected to Eggs Benedict . The technician's name is assumed, although not confirmed to be, Mike . </P> <P> Apart from Mike Schmidt, Jeremy Fitzgerald, Fritz Smith, and Michael (a character whose voice is heard in Sister Location), none of the other human characters in the series have any real, or at least confirmed, names . In the first three games, a man simply identified as "Phone Guy" leaves a recording over the phone at the beginning of each night which serves as advice to the player on how to deal with the animatronics . Phone Guy is present through all five nights of Five Nights at Freddy's 2, four of the main nights in Five Nights at Freddy's, and four of the main nights in Five Nights at Freddy's 3 (as well as in Night 6 for the second and third games .) He is not present in the fourth and fifth games, though his first night recording from the original game is sometimes played backwards as ambiance in Five Nights at Freddy's 4 . His call at the start of Night 4 in Five Nights at Freddy's implies that he was killed by the animatronics . In the third game, he is heard over archival recordings discovered by the creators of Fazbear's Fright . Five Nights at Freddy's: Sister Location instead features a human A.I. named "HandUnit", who like Phone Guy, acts as a tutor to the player . The first two nights of the third game also feature "Phone Dude", one of the creators of Fazbear's Fright . The sixth game introduces "Cassette Man," a male voice heard giving instructions to the player on a series of cassette recordings . </P>

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