0) Read this post

1) To start an ARG you need to like and write a comment to Vanessa:

You've entered the Mega Pizzaplex, from this point on I can't help you. Be careful, and remember - Follow the clues, don't miss any steps, and save Gregory before the time runs out.

Good luck... wait, what's your name?

2) After that Freddy will text you and you have to invite 3 users with the hashtag:

Hello hello, I'm Glamrock Freddy. I'm here to help you since it's dangerous to go alone, so before you start make a post and tag 3 other friends you want to join you in the mall using the hashtag #SecurityBreach for next steps.

3) Glue the glasses to the image of the Monty

After that, Freddy will write:

Well done hello, you're doing great!

I've managed to find PART of a clue - @ GR - I'm told the other part of the clue is hidden behind the firesides... whatever that means!

4) "@gr" is obviously the first letters of "Gregory." After his discovery, Gregory has a post:

Oh thank you so much, I was so scared, but you found me!

All you have to do now is like this post and we can both get out of here!!

5) Like and subscribe to Gregory (redo it if you already did!), and wait 10 minutes. You will then receive stickers, "FNaF Security Breach Victory Trophy", and a message from Vanessa:

Well done hello, I knew we could count on you! You followed all the clues and saved Gregory - you make an excellent security guard!

As a token of our appreciation, we've sent you and your friends some exclusive gifts!