Lots of RNG
If you need help on how the girls function, spoilers below
This is the method I used, and it is a ton of luck.
Chica and Bonnie will always go to the right and left doors respectively, you do not need to look at the cameras for them ever as it just wastes too much power. Instead, wear headphones and listen for steps from your left ear or right ear.
Foxy will always attack the left door, and it's hard to know when she's coming and impossible for me to react with the sound alone so keep a camera right outside that door and check it periodically, her running animation gives you enough time.
Freddy will laugh when she teleports to another room, at the 5th laugh she'll target the right door and only the right door. If the door is closed when she tries to move, she'll laugh and move back to the 4th spot. Just keep that door closed when she's at the 5th spot.
