I've found that, after meeting Mysterious Girl, if instead of going up and and the left (to go to the panel) you go to the right, you can phase through walls and see the Game Over screen. I don't know if this was on purpose or not, but I wanted to share anyway just in case.
Really looking forward for next updates, I'm having a lot of fun with the game, even by just replaying it. It is really noticeable that a lot of effort was put into this and I appreciate every detail of it.
could it be you equipped her with a hair bow? the thing that you put on the hair..I ask because it changes the color of the hair, so that may change it completely