I agree with the "barely scratched" bit. One moment that kind of illuminate me on how useful is Cappy for platforming, not just capturing, was doing a Koopa Race in the Steam Gardens. I was playing and I really couldn't understand why I always reached the end in the 2nd place. So I followed the best of the Koopas to see what the hell what he was doing to always beat me. And I saw that you can long jump, then throw Cappy, then dive into Cappy to do the longest jump I saw in a Mario game XD.
Afterwards I went to Youtube to see what people were doing, and I was astonished with the awesome movements I saw. I mean, Mario's moveset in this game is just brilliant.
And, well, watching speedrunnings of this game could be the best thing ever. I can't wait to that!
