Nintendo has been upping the ante with more social media accounts over recent weeks and months, with Nintendo Versus (focused on competitive gaming) being a notable example.
A lower key example is the Super Mario UK Twitter account, set up during E3 to focus on the mascot (and particularly Super Mario Odyssey at the moment). Its latest tweet caught our eye, as it demonstrates rather nicely how the Cappy possession mechanic will be put to work in the game; there's scope for some rather clever puzzles.
It'll be interesting to see how deep the game goes as we explore fully. The Treehouse demonstrations during E3 promised much, and it's certainly shaping up to be an exciting title on Switch.