There are also so many towns and locations the graphics designers put months of work into, despite us only being there for a brief period of time and never going back. Music included for them all too. And at least 1 mini game per.
Max said it during one of his recent streams but how many of these mini games they designed could very easily be expanded and in prior decades would be "the card game" for the title. But we have a card game, and 2 dozen other things. But no fishing, I was surprised by that.
edit: I'm 78 hours on my save file, end of Chapter 10 heading to 11. The only extras I have not done yet are choco racing, 4x hard mode protorelics from cosmo, and the 5th piano song. Things I can put off til later and not waste hours on basically.