Since a lot of people are saying the descriptions of the characters are pixelated and hard to read, I made this post which will show all the descriptions in order of the roster!

Main Roster

1 - Golden Freddy: This ghostly bear will randomly appear in your office after you close your monitor. He won't leave until you either open the monitor again or put on your mask. Having him in the office for too long will result in a run-ending jumpscare!

2 - Endo01: He will appear in the office randomly, with dramatic music playing. If his eyes are blue, look at him (put your mouse over his face). If his eyes are red, look away from him.

3 - Withered Freddy: He will randomly appear in your office when you have your cameras on. Put on your mask to send him away!

4 - Withered Foxy: He will go through the vent system, but won't be stopped by the door. When he's near the vent opening in your office on the vent radar, you will be able to see him, looking down at you from the shadows. Flash your light to scare him away!

5 - Shadow Freddy: Remnant will slowly accumulate in your office. Collect remnant by simply putting your mouse over it! Don't let there be over 5 remnant in the office at any time to avoid getting jumpscared!

6 - Endo02: He will stay in your office and will randomly look at you after closing the monitor. Use the controlled shock button to stop him!

7 - Paperpals: They will mess with you in random ways throughout the night.

8 - Phantom Chica: The arcade machine screen in your office will sometimes turn into a view of Phantom Chica's face. When it happens, quickly click on the screen to avoid her attack!

9 - Phantom Foxy: He will sometimes appear in your office after closing the monitor. Quickly flash your light at him to make him disappear! Leaving him in the office or opening the monitor again will result in a jumpscare, which while not actually killing you, will result in higher temperature and more noise!

10 - Phantom Puppet: Staying hidden on the Kitchen camera, this ghostly marionette will need the music box to be wound up. If the music box fully winds down, Phantom Puppet will block your view, stop you from doing mostly anything and will make loud noises!

11 - Nightmare Foxy: Staying in the Pirate Cove camera, Nightmare Foxy will make his way out of the curtains if you don't check on him regularly.

12 - Jack-O-Bonnie: He will slowly materialize in the Left Hall camera if your temperature is kept too high and will disappear again when its low. If he materializes all the way a jumpscare is the only thing you can expect.

13 - Funtime Freddy: He will stay on the Supply Closet camera. When you hear him command BonBon to 'go get him', close the left door. If he says 'get ready for a surprise', close the right door.

14 - Bidybab: She will go through the vent system. Close the door on her face to send her back. The global music box slows her down.

15 - Yenndo: He will stay behind you, always, and is sound sensitive. The more sound you make, the more he will get angry and eventually jumpscare you!

16 - Pan Stan: ???

17 - Mr. Hugs: He will stay in the Gamer Room, playing Five Nights at Toy Freddy's. You have change the cameras in the game and close the appropriate door when you see Toy Freddy.

18 - Candy Cadet: He will stay in your office, turned off. He will sometimes turn on and tell you a story, which of course, will do a lot of noise. When he tells you the story, turning on the heater is the only way to stop him!

19 - Security Puppet: Don't let your mouse linger over Security Puppet for too long!

20 - The Clowns: These humorous guys will appear on both hallway cameras, one on the left, one on the right. They will slowly appear more and more, but one will appear a bit faster than the other one. Close the door on face of the one that appears slower!

21 - Gumball Swivelhands: She will stay on the Restroom camera. When you don't look at her, her arms will begin to swivel faster and faster. Looking at her will make them slow down. Letting the arms go too fast will result in a jumpscare!

22 - Egg Baby: He will sometimes appear in your office, missing the little Egg Baby. You will be required to go to the Prize Counter camera and purchase the Egg Baby toy to calm him down and avoid his attack!

23 - Ad Gang: An ad for one of the five companies will sometimes cover your entire screen, playing loud music. Simply press ENTER to close it, or wait several seconds for it to close by itself.

24 - Adventure Freddy: A little minigame will sometimes appear in the top left corner. You will have to press C when the pearl is on the + sign to catch it! Not catching the pearl in time will result in your cameras getting blocked for several seconds!

25 - Adventure Toy Freddy: Toy Freddy just wants to download Update 3 of FNaF World, but he needs the internet to be stable to do so. The internet meter will decrease if the usage meter is over 3 bars. Letting the internet meter go down fully will result in nothing but an angry gamer jumpscare!

26 - Adventure Endo01: Once your power reaches 50%, the Endo Army will spawn and block your screen for some time!

27 - Adventure Endoplush: He will stay in your office, loading up his eye beam. You can see his loading up progress by checking his left eye, the more red it is, the more progress he's made. Turning on the Global Music Box is the only way to get him to stop!

28 - Adventure Fredbear: A Fredbear figure will be in your office, you can move it to either door by double-clicking it. Fredbear will appear in either door. He'll leave if the figure is on the same side, as he doesn't want the universe to end again.

29 - Adventure Crying Child: It will randomly appear under the desk after closing your monitor. If you see it, you only have a split second to put on the monitor again. If you don't react in time, you'll be forced to wear the mask for several seconds, blocking you from doing anything else.

30 - Snowcone: A crosshair will appear in random places all throughout the night. After a while, the crosshair will stop and snowballs will begin to shoot at it. Getting your cursor hit by a snowball will cause your HP to go down. If it goes down to 0, you lose. If the heater is on, the snowballs will go slower.

31 - Brow Boy: Barely visible on the radar, Brow Boy will go through the vent system. As the doors don't stop him, turning on the heater is the only way to make him go back.

32 - Flan Crew: They will accumulate on your desk the more you put your monitor up, eventually leading to a jumpscare. The only way to stop them is to use the controlled shock button!

33 - Rainbow: She will sometimes appear in your office. Buy the Rainbow figurine from the Prize Counter to make her leave.

34 - Malhare: He will stay in your office at all times, slowly forming into existence out of thin air. Flash your light at him to make him disappear again. Letting Malhare fully form will result in a jumpscare!

35 - Plushbabies: A Plushbaby will appear in your office. Purchase the Circus Baby figurine from the Prize Counter to make her leave.

36 - Scrap Plushbabies: One of them will sometimes appear on the far desk in your office after closing the monitor. Flash your light to avoid her attack! Pulling up the cameras will result in death.

37 - Withered BonBon: You will sometimes see a deattached BonBon arm on your desk. When you see it, you will have to find Withered BonBon somewhere in the office and press the big button on his torso.

38 - Shadow Mangle: She will slowly approach your office using the vent system. Check on the vent system to make her quickly go back to her starting point. Letting her into your office will result in a jumpscare and a game over.

39 - Dark Freddy: Monochrome toys will appear in your office every time you close your monitor. Be sure to click on the toys to collect them before putting on the monitor again. Sometimes, instead of a toy, a Freddle might appear, if it appears, don't click it.

40 - Neon Bonnie: Disorienting blacklight effects will constantly appear in your office. The only way to stop them for good is to buy Bonnie's eyes from the Prize Counter, which will calm down Neon Bonnie and allow you to continue your night peacefully.

41 - Neon Chica: She will appear in your office, missing her Cupcake. Find the Cupcake on the cameras and double-click it to avoid her attack!

42 - Burnt Foxy: He will stay on the Kitchen camera. Randomly, the temperature will raise quickly! When that happens, simply look at the Kitchen camera for a short while until Burnt Foxy becomes regular Foxy again!

43 - Freddy Frostbear: This 'cool' bear will appear more and more in your office if the temperature is too cold and will disappear again when it's too hot. If he appears fully, a freezing jumpscare is all you can expect!

44 - Chipper: Two slots will sometimes appear in the top left corner. Press X to stop the left slot and C to stop the right slot. If the slots match, you continue. If they don't, you die. Taking too much time to stop the slots will result in death.

45 - Coffee: He will stay on the arcade cabinet in your office, slowly filling up with coffee. Don't let him fill up all the way by clicking on him to drink the coffee. Drinking will cause the caffeine meter to go up, if it goes up to 100%, you're dead.

46 - Blacklight Rockstar Freddy: He stays in your office, turned off. He'll sometimes turn on and ask for five coins. Deposit the coins or turn on the heater for a short amount of time to avoid his attack.

47 - Phone Dude: He will sometimes call you. Be sure to find the 'MUTE CALL' button that will be placed somewhere on-screen and click it or press Z to mute his call if you don't want your noise meter going up!

48 - Mono Freddy: He will go through the Right Hall. If he reaches the right doorway in the office, he will either stay as Mono Freddy or turn into Twisted Freddy. If he's Mono, close the right door. If he's Twisted, close the left door.

49 - Troll Squad: ???

50 - Totem Panic: A warning symbol will be moving from either the top, middle or bottom of the screen for several seconds. After a while, it will stop and a part of Totem Panic will shoot across the screen on the height of the warning symbol. Getting hit by the part will cause Totem Panic to build himself more and more in your office. If he's fully built, you're dead.

Prize King and his roster

51 - Prize King: He will randomly appear in your office and spawn a character from his roster to ruin your night!

52 - Virtua Freddy: When spawned, you will see his head in the top left corner of the screen. If it's green, nothing's different. If it's blue, the camera and mask buttons get switched!

53 - Dreadbear & Grimm Foxy: This spooky duo will stay on the Grimm Cove camera. A little figurine will appear on your desk. If the figurine is of Dreadbear, do not look at the Grimm Cove camera, otherwise Dreadbear will crash your monitor for several seconds! If the figurine is of Grimm Foxy, check on the Grimm Cove camera as much as possible to avoid him getting out of the curtains and running to your room.

54 - Fetch: He will text you throughout the night and cause trouble to you.

55 - SpringBonnie: Watch the pit.

56 - Mariominous: The Nightmarionne heads will spawn on the front wall of your office every time you close the cameras. Turning on the Power A/C for a while is the only way to get them to disappear!