Five Nights at Remix Freddy's is an online web series created by The HV and Dino-Weapon Show YouTube channel. The series consists of different animatronics from the Five Nights at Freddy's series, as well as recolored and remade versions of said characters dubbed "the Remix animatronics." The main animatronics are Remix Freddy, Remix Bonnie, Remix Chica, and Remix Foxy, along with many more animatronics waiting to be revealed.
Since the original series got cancelled and the remastered series never lived up to the hype, this will serve as a canon explanation for how the Remix animatronics came into being, as well as the origins of the series in-universe.
In the show's canon, the FNaF games are just games, and one mega-fan has taken it upon himself to create his own versions of these animatronics. He started by creating the first 4 Remix animatronics, then even more animatronics, both Remixes and replicas of the originals. Eventually, this person was burned out and stopped making the robots one day. However, years later, a mysterious factory emerged in the distance, generating even more animatronics than ever before. One of these animatronics was Nightmare, who quickly proved to be one of the strongest of them all, due to his size and raw strength. When the factory's output started to dwindle, Nightmare took control and started making even more animatronics. With the help of some outside sources and some new advanced technology, they managed to create a link to a place that would supply them with endless Remix potential. However, only time will tell how the consequences of their actions will affect the greater TXHQ....