Huge shoutout to Thebones5 for bringing up the idea, and Brayden for making the Bad RNG mod, the download links will be in this video: https://youtu.be/GK7ewuJuNsA?si=Q4yElUvEBCGyXm-1
Also a shoutout to Felixander30 for bringing light to what made this even possible in the first place: https://youtu.be/3St6eK_1Fpc?si=Z6yK27mejCNGhuqH

If you saw Thebones5 video, you're probably like "Wasn't this proven impossible?" Well, there's a few things to point out here
Phantom Freddy doesn't actually require 11 flips, he only requires 9.
This leaves us with 3 flips or 4 flips, and it all depends on when Phantom Freddy appears at the hour, and if we add this up assuming Springtrap gets in at 1 AM, you have. (9 + 3) * 5 = 60 flips, however, we can skip an additional flip at 5:42, and just let the ventilation run out, and Springtrap won't be able to kill us in time
How I managed to execute 1 frame flips was with the help of a macro that spammed M1 at every single possible moment the camera was up. I would also click my mouse to make the 1 frame flips as perfect as possible. I had a separate macro for Freddy where it would wait 1.95 seconds to get the maximum possible time for Phantom Freddy.

With that however, FNaF 3 with the worst RNG possible is indeed possible!
If you guys have any further questions, please leave a comment and I'll answer to the best of my ability!