Question in Bendy Series

Put on a big smile!

WHERE THE FUCK IS NIGHTMARE RUN

Is this what bacon soup is based off of.

what is a good game engine to use to make my bendy fangame?

Im interested in making a Bendy fangame, So I was wondering if there was a way to edit the original beta/alpha? I'll change textures and make my own story with different mechanics and puzzles, im just looking for the base layout to edit.

Apparently I found that someone was talking about how this post on Reddit and that Joey drew studios YouTube accounted posted This and then deleted but I don’t know if this is true