This isn't as simple as it sounds, really. First of all, you need to have a tool to set your FPS to 1. This is the most important part of the strat. Start the night, set your FPS to 1, and just AFK. Set the FPS back to 60 after beating it. How it works: Freddy, Bonnie and Chica can only kill you if you use the monitor, so they're out from the get-go. Foxy on the other hand... When he leaves Pirate Cove - almost inevitable after not using the monitor for the first 15.03 seconds if you get normal RNG - a timer starts counting up every frame if you don't check cam 2A, and when it reaches 1500, Foxy spawns at your door. Normally at 60 FPS this would translate to 25 seconds, but at 1 FPS, it translates to 1500 seconds. A night in the first game lasts exactly 535 seconds (regardless of FPS), so by playing at 1 FPS you can avoid all four animatronics. Obviously, unless you have a crappy 1980s PC, this "strat" is only viable if you have a third party program outside of the game, so I doubt this'd be allowed in speedruns or greenruns, I just wanted to show how it's possible. If you beat 4/20 using this strat, you're a wimp ;)