Somehow I kept getting the Ending 9 and I can't figure out why.
Do you have something like a guide?
Hi there, there are some hints on this post https://itch.io/post/623422; I don't officially have a guide, but feel free to respond to this comment again if you want more specific direction afterwards! Essentially all ducks need to be in a row in order to get the appropriate endings...
Cheers!