The Binding of Isaac Repentance Patch Notes - Full List of New Features
The Binding of Isaac: Rebirth | ENDING 14 | Polaroid... - YouTube
Apparently gulping the faded Polaroid makes it unable to open the door in depths which I guess makes sense since you can't put it in the door if you swallowed it :
Binding of Isaac: Rebirth Item Ideas 2 by A-Ithyphallophobiac on DeviantArt