I'm not sure if "origin stories" is correct to apply on this game, since not all of the included stories result in how things really are, but that is part of the fun.
The content warning "Contains bad poetry" tells me that this game doesn't take itself too seriously - it is here to entertain. The title seemed at first a bit silly, but perhaps it was intended. But looking back, the title would actually be fitting for a bedtime story for a child, as it could have revealed what the story was about unlike most titles. So somehow the title makes sense anyway.
I haven't read the book "Just So Stories for Little Children" by Rudyard Kipling, which inspired this game, so I don't know how much the game has in common with that book. Anyway, I am glad Peter Eastman made this game.
I was positively surprised. The writing is really good and humorous. You do have choices but not puzzles. It is more like branching stories. I know that the number of branches can explode if a story keeps branching so it was understandable that the number of choices was a bit limited.
There didn't appear to be bad endings, just different paths to different endings. Thus I did not see any reason to try again, as I was perfectly happy with the path I took. But for as long as it took, I was entertained. A short but fun game.