Hey guys! Today, I'm going to show you some pictures of things I found in the files. I have uncovered a lot of files.
http://i.imgur.com/HEC9YfS.png
Newspaper.
http://i.imgur.com/9QTUETy.png
Springtrap playing peek-a-boo.
http://i.imgur.com/8bA9v7p.png
Phantom Mangle.
http://i.imgur.com/AfQyfEs.png http://i.imgur.com/fqWMDN0.png
Black cupcakes, big and small.
http://i.imgur.com/NqCraPM.png
Springtrap's texture outside the office window.
http://i.imgur.com/RnWd4y5.png
Phantom BB's face when it appears on the monitor.
http://i.imgur.com/up3Xpik.png
The last frame of Springtrap's 2nd jumpscare.
http://i.imgur.com/wuuLvfn.png
Shadow Bonnie figurine.
http://i.imgur.com/GfJYbg6.png
Shadow Bonnie (?) in the minigames.
http://i.imgur.com/O9tbHmM.png
Phantom Freddy, missing his right leg, walking behind the office window.
http://i.imgur.com/03NQxeR.png
The last frame of Phantom Freddy's jumpscare.
http://i.imgur.com/9kqLbbF.png
Phantom Foxy when he appears in the office.
http://i.imgur.com/0T4B5Ix.png
Golden Freddy in the office.
http://i.imgur.com/KUj5p5m.png
Cupcake figurine.
http://i.imgur.com/u9irSib.png
Good ending screen.
http://i.imgur.com/mTc3pgV.png
Bad ending screen.
http://i.imgur.com/tKgrJ7F.png
The last frame of Springtrap's 1st jumpscare.
http://i.imgur.com/C60eaVs.png
Springtrap sneaking behind the door.
I think I've found a lot of useful files that can go on the Wiki, and I'll keep digging for more! Discuss in the comments!