There are 4 stars you can get in the game.

1 for beating the main 5 nights.

For nights 1-3, just keep your camera on CAM 11 for Blank. Check the cameras often. If he leaves his room, close the window door. While you're not watching the camera, look at the doors to see if there are any eyes in the doorway. If they are there, close the door.

For the nights 4 and 5, you have to check CAM 06 along with Blank's camera to check for Old Candy. His eyes do not glow. You need to check the cameras to see if he's at your doorway.

1 for beating night 6

For night 6, you have to check CAM 11 for Blank, CAM 06 for Old Candy AND RAT. You also have to check CAM 04. RAT can come from either door and his eyes don't glow, just like Old Candy.

1 for beating 7/20 mode

I... have no clue to be frank... I cheesed it with a bug where

if you stare in the middle of the room at the start of the night, no animatronics can kill you except Blank. Close the window door every 20 or so seconds. Power won't be an issue so don't worry about closing it early.

That bug is probably fixed by now or is going to be fixed soon.

"If you guys want to beat 7/20,just do it just like Night 6 (But you will have to react much faster)

I did so and beated it after running out of power"

-BillTheBlackFox (in the comments)

1 for ...

This star is a secret. Don't read this if you want to find it on your own. But come back here if you're stuck. The first three spoiler sections will be hints on the first section. The next three spoiler sections will be hints on the second section. After that I'll just put a full guide and tips. I'm usually bad at explaining things so feel free to ask questions if you misunderstand something.

HINT 1 PART 1: I wonder if something goes on in Extras.

HINT 2 PART 1: RAT doesn't have music... Weird...

HINT 3 PART 1: RAT's face looks a little weird... Why not give it a closer work?

HINT 1 PART 2: I wonder where those numbers would be useful.

HINT 2 PART 2: Those numbers came up in a weird way.

HINT 3 PART 2: The Custom Night menu kind of looked similar...

GUIDE 1: Go to Extras and look at RAT in "Animatronics".

GUIDE 2: Zoom into RAT's face and wait a few seconds.

GUIDE 3: Put the numbers that come up into Custom Night. There are 4 on top and 3 on the bottom, like how custom night is set up. If you forget the numbers or the order or something, go back to the main menu, go back into Extras and try again. They come up the same way every time you go in, but they might come up differently for everyone.

GUIDE 4: Enter custom night and look at the stage with night vision on. Then close the camera.

GUIDE 5: When you get jumpscared by Shadow Candy, you'll start the night you need to beat.

GUIDE HOW TO BEAT THE &%$TH NIGHT:

To beat the &%$th night, you need to find Shadow Candy on the camera and look at him. He starts in camera 13 in the top left, and when he's gone from there he's in another random camera. If you find him, you have to stare at him to make him reset. He can appear if the night vision is off OR on. If he appears in a camera when the night vision is off, he won't appear when the night vision is on and vice versa. If he's in your doorway or the window (use the cameras to see him), close whatever he's at. It'll drain 2-5% power depending on how many times he knocks. If you don't see him, look again with the night vision in the opposite state. (If it was on then look while it's off and if it was off then look while it's on.) You don't have a lot of time, so make sure you check the cameras outside your doors a lot just in case. If you do find him DO NOT PUT DOWN YOUR CAMERA OR SWITCH DO ANOTHER ONE FOR TOO LONG! It'll cause him to change to another random position. Probably outside your door. CONSTANT VIGILANCE!

If he gets in, he'll decrease your power and set the time back. Your power will be decreased by about 5(?)-10%. I'm unsure about the time. Maybe half an hour back. Shadow Candy will also cause the origami cat on your desk to disappear from your desk and appear in a camera. I don't know what that means for the night if it stays off the desk but, find and click the origami cat in a camera to make some time pass. I don't know how much time, but it might be more than Shadow Candy takes from you. I went from 2AM to 4AM after clicking the cat. This definitely isn't a good strategy to beat the night though. It's random, and you'll never have enough power. I tried just letting Shadow Candy jumpscare me and clicking the cat and only ever made it to 4AM.

You just have to make it to 6AM. It'll take a few tries, but it's not too difficult.