Welcome to the ONLY 100% accurate story guide! All the other guides have inaccuracies or outright misinformation!
This guide contains a full story walkthrough, including how to get both endings!
If there's something I forgot about, put it in the comments below!
This guide is written in sequential order, so if you just read from the beginning up to the place you are at, you will not get spoiled!
This guide will not contain tips about the minigames themselves or how to get achievements.

If you want tips and tricks for each minigame, see my other guide!
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3125167808

The idea that there is a third ending comes from misinformation created by an AI generated guide, which stole and is generated from someone's youtube video where they made a "The third ending is just leave!" joke at the end where they clip through the exit doors and then splice in the credits from the main ending. The AI then put this in the guide because it thought it was a real ending, since the AI doesn't understand what a sarcastic joke is.

- As you play, gift boxes will appear on the stage in front of you. Open them to collect FazForce action figures of Freddy, Bonnie, Foxy, Chica, Golden Freddy and the Puppet. Place these figures on the display to your left.

- Play any minigames you want until you get a Fazwrench as a prize (after 15 wins and/or losses). It will appear on the table next to you on your left.

- Use it to pass the conduit puzzle on the right side of the main hub to open the door to an old Princess Quest ARcade machine and a MXES signal jammer (the things from Ruin that prevent you from either putting the mask on or taking it off).

- After disabling the signal jammer, you can take off your VANNI mask to get access to the 'hard mode' levels. Keep playing to collect more FazForce action figures!

- If you've completed all minigames but don't have all figures, this means you have completed minigames without noticing there is a prize box on the stage. Keep reloading the hub using the pause menu until no more prize boxes spawn.

- Once you have collected all six FazForce figures, they will disappear. After a short delay, a large gift box appears on the stage containing the combined FazForce action figure. After opening the box, the main ending cinematic will play.

Congratulations! You beat the main story!

To get the secret ending, you must first collect 6 "memory plushies" hidden in various levels. To be able to do this, you at least need to have:
- Hard mode unlocked
- The minigames required for each plushie unlocked: FizzyFaz Night 3, Fazerblast: FNAF3, Capt. Foxy's Log Ride, Fazbear Theater, Office: Puppet Master, and Bonk a' Bon: Bonus Round.

After completing a minigame that has a plushie hidden inside, a new 'Vanny graffiti' will appear somewhere in the main hub. Mystic Hippo will also always tell you where this graffiti is upon loading back into the hub after completing said minigame. You can use this information to figure out how to get each plushie, but if you're stuck, they are all listed below. You do not need to fully complete a level to collect a plush.

Golden Freddy
Location: Fizzy Faz Night 3
Vanny Graffiti Clue: A graveyard with a crossed out power icon and a Sodaroni picture, in the back left corner by the gumball machines.
Retrieval Method: In real life, a "graveyard" is one of many nicknames given to mixing every or many soda flavors together. Add the Sodaroni found in a can on the desk to the mixing cup, then add one of every ingredient. Hit the lockdown button on your right, then send the order while in a lockdown to get the plushie. You DO NOT need to be in a lockdown while mixing the ingredients.

Freddy
Location: Fazerblast: FNAF3
Vanny Graffiti Clue: A rocket being attacked by 2 Nightmarionne tentacles in front of the main stage.
Retrieval Method: Play the first three Fazerblast levels and shoot the rockets with a laser that appear in all three. The only one that's easy to miss is the one in Fazerblast: Western, as it moves fast hidden behind the train. The other two move slowly and fly right in the center of the shooting gallery. You need to survive for shooting the rockets to count. You will know if they counted if you load into a stage and see 1: The curtain on the left knocked down, 2: A hay bale in front of you, 3: The explosive barrel on the right knocked over. The rockets DO NOT DISAPPEAR after you shoot them. After shooting all three rockets, beat Fazerblast: FNAF 2 while getting AT LEAST 7,000 POINTS. DAWKO IS WRONG. You do not need to defeat all animatronics. Every other guide is also wrong, you do not need 9000 or 7380 or any other value. You don't need to avoid being jumpscared (by cardboard cutouts). You only need at least 7000 points. If you don't believe me, watch my video that proves it:
https://www.youtube.com/watch?v=52nBkJ7KYCQ
While playing, you can 'defeat' the animatronics that can appear. Doing this gets you a massive amount of points and removes that animatronic for the rest of the night. These animatronics are Toy Freddy, Withered Foxy, Mangle, Balloon Boy, Toy Chica, Toy Bonnie, and Withered Bonnie. Foxy appears on CAM08, Toy Freddy appears on CAM10. The rest appear in the vent cams. If they appear on a vent cam, you will need to shoot a laser at the vent light, then pop their balloons with the dart gun. When you see Withered Foxy or Toy Freddy on the cams, STOP, and let the cams lower by itself to show the office. Then if it's Foxy, shoot a laser on the main office light to reveal him so you can throw balls at him. You only need to hit him once with a ball to count as defeating him, after which he never appears again. If it's Toy Freddy, shoot a laser at the mask on the office desk to put it on; this defeats him so he doesn't show up again. REMEMBER TO WIND THE MUSIC BOX. Do not throw balls except at foxy (if you want), it is a waste of time. You get 1000x more points from the balloons.
If you did it all correctly, everything shooting the rockets did in other levels will start a chain reaction, lighting the whole stage on fire. This unlocks Fazerblast: FNAF 3. Completing this level awards you the Freddy plushie.

Foxy
Location: Capt. Foxy's Log Ride
Vanny Graffiti Clue: Helpy with four blue stars on the ceiling above Mystic Hippo.
Retrieval Method: Find and shoot four of these blue stars while on the log ride. These stars light up when you shoot them. The first three are found in the three alternate routes that you need to shoot the Helpy cutouts for.
The first Helpy is on the right at the first stand-still section. The second is put right in front of you. The third is riding a minecart above you when moving minecarts appear.
The first star is on ribbons above you when you go through the area with many opening windows. The second star is again above you, in between the two doorways jack-o-moon comes out of and after swinging saws. The third star is on the right on the floor near the end of the final alternate route, after you've repelled jack-o-moon three times. The last star is in the cake at the very end of the ride.

Chica
Location: Fazbear Theater
Vanny Graffiti Clue: A trash can filled with four Chica heads on the left wall of the kitchen
behind you in the hub.
Retrieval Method: Put all four Chica-themed items into the trashcan on the floor. These items are: Lemon Chica Bar, Chica Chowder, Chica Chug, and the Chica Chugee.

Puppet
Location: Office: Puppet Master
Vanny Graffiti Clue: Ballora on the door to the backstage area to the left of the stage.
Retrieval Method: In Puppet Master, the drawer on your left that is usually locked is unlocked and contains a keypad. Type in 1983 (the same as in the original Sister Location, which showed you the FNAF4 house on the monitors) and you should receive the plush.
Type the code slowly or it will not work.

Bonnie
Location: Bonk a' Bon: Bonus Round
Vanny Graffiti Clue: "TILT" "BONK-A-BON" written backwards on side of a arcade cabinet on the right side of the hub.
Retrieval Method: Survive until the bonus round. When the Glitchtrap puppet appears from one of the holes, bonk it to activate the tilt alarm. Then, plug the code written on the note in BACKWARDS.

- Now that you have all the memory plushies, a glitched token will appear in front of Mystic Hippo. Taking it to the Princess Quest machine will allow you to play it.

- After playing through PQ and jumping down the hole you unlock, the 'Princess' will be in the same room as you. Walk up to yourself and attack. This will load 'Princess Quest (VR)'. Pick up the sword and follow the linear path until you reach a graveyard.

- Light all the fires in front of the graves to open the way forward. If you want the secret Bonnie mask and "Lost Luggage" achievement, you need to light the graves in order according to how many dots they have, from 0 to 5. This can be figured out with logic and the process of elimination, but if you are stuck, the order is Chica, Foxy, Freddy, Bonnie, Golden Freddy, Puppet.

- Talk to Old Man Consequences and continue into the Sister Location elevator. Give the Glitchtrap plush to moon and the secret ending cinematic will play.

Congratulations! You beat the secret ending!