click things to watch them, at the end of each night, you can buy stuff from the souvenir shop, remember that this took some time and is not a great game, and remember to set the world record. Also, since I'm not expecting a lot of people to view it, I will reply to every comment.
Really, it's as simple as crediting Scott Cawthon, and just remember that even though it is a fan game, it's trying to be somewhat original