All these animatronics at 20:

Bonnie

Toy Bonnie

Toy Chica

BB

JJ

Withered Bonnie

Withered Golden Freddy

Springtrap

All Phantoms

Nightmare Freddy

Nightmare Fredbear

Nightmare

Old Man Consequences

Ballora (optional if you want the 5200 points)

Ennard

Trash and the Gang

Helpy

Rockstar Freddy

Rockstar Foxy

El Chip

Funtime Chica

Molten Freddy

Scraptrap/Afton

Phone Guy

Way to achieve it: put on the mask and turn on the power generator (key 1), put on the mask and only open the monitor when you have a ventilation error, close the right hatch (key f) if you hear a lot of noise and flashing lights, also if you see BB and/or JJ, use c key to catch a fish in the OMC minigame and Enter for the El Chip sign, close the right or left door if you hear a laugh from Nightmare/Nightmare Fredbear, also close the door where Ballora's music is coming from, Molten Freddy and Ennard are very similar, close the top hatch (W key) when you hear a laugh (Molten Freddy) and a squeak (Ennard), Springtrap comes around too, but he doesn't make a sound, he just sees his face in the hatch, if you see Helpy in your office, click him to leave (he will give you a FazCoin), give 5 coins to Rockstar Freddy, ¡and for nothing in the world do you see Bonnie in Pirate Cove or touch Foxy's parrot! (you earn Fazcoins if you close the door/gate on the characters or by finding them in the cameras), don't see Phantom BB or Phantom Mangle on cameras and shine Phantom Freddy in the office and shut up the phone guy, and that would be it, good luck!