Visualization of choice graph in Flown the koopa adventure book:
- https://www.goodreads.com/book/show/1013241.Flown_The_Koopa
- https://www.amazon.com/Flown-Koopa-Nintendo-Adventure-Books/dp/0749713097
- https://www.amazon.com/FLOWN-KOOPA-NINTENDO-ADVENTURE-Nintendo/dp/067174206X
- https://www.mariowiki.com/Flown_the_Koopa
Generate visualization with https://dreampuf.github.io/GraphvizOnline