Don’t know if this is what you mean by that, but the original game had a +18 version that made the game overs more explicit (text-wise). I did manage to salvage some of these game overs, but due to that version of the game being deleted a looooooooong time ago and because I was only able to find like 2 of them. I didn’t end up implementing a way to trigger them.
Viewing post in Five Nights in Anime: The Visual Novel ReBuilt comments
About that, I have found some videos showcasing quite a number of them... Perhaps you could re-create them from this footage?
Fnia visual novel episode 1 part 2 me and baby feel uncomfortable with Xander and baby of course (youtube.com)