In the new files, I had acces to all scenes in the gallery even though I havent got everything unlocked
It may not be cheat mode exactly, I have something similar, however it may have retroactively given me scenes that I would have gotten anyways. What I mean is that I got almost all the scenes, and when new art is put it, it may have been attatched to those scenes, instead of checking if I saw the image. Just a guess.