One of my favorite parts of this excellent game is meeting a character in the main world and then finding a memory in a Mushroom Zone and getting to learn their name and something more about their personality and story, sometimes something surprising. I was excited enough about this that I started a document to write down each character's name and a snippet of what I learned about them.
So in addition to getting all the items, I wanted to finish the game having read every memory. And I think I succeeded? I count 52 memories on my list, including the secret "final memory". And I can't think of any characters that I haven't found a memory from, but then, I did forget about the stockbroker and the museum curator until I came across their memories, so.
I don't think there needs to be an in-game counter for the memories or anything like that, but I wanted to check in here to make sure that I did a "true" 100%. Is 52 the total number?
Thanks and thank you for a truly delightful game!