I have a theory that the fnaf 2 pizzeria had a sister location. The only proof I have is that JJ aka Balloon Girl could have been in the sistar location and the toy SpringTrap seen in the FNAF 3.
My ideas for the sister location would be that there would be a Toy Golden Freddy, Toy Spring Trap and Balloon Girl aka JJ in the sister location. The sister location would have Toy robots that people can also get into and the person who would put on the Toy SpringTrap robot in suit form and died in the suit and that would explain the shadow bonnie looking like toy bonnie instaed of regular springtrap like game theory said. In a nutshell, FNAF 2 pizzreria had a sister location. Any questions?