1:The cupcake most if not all players of five nights at Freddy's see the cupcake in the top right corner of the screen some see it blink but I think that the animations are using it to watch you and see your every move.
2:Foxy's secret one theories I have is that foxy is on your side and when he comes in the room he doesn't kill you but try's to check on you and ends up giving you a heart attack also his mouth is messed up so that's why he screams.
3:Freddy hates the dark right? well I think he's actually studying your moves and planing his attack in witch he kills you.
