https://www.polygon.com/2017/10/26/16553210/what-to-know-about-super-mario-odyssey-differences

Super Mario Odyssey is another stellar game in the franchise — but it’s anything but a classic one. For Mario’s first big Switch outing, Nintendo made a surprisingly large number of changes to the series formula. Follow along for some of the biggest ways that Odyssey shakes things up.

Other sandbox-y Mario games give our hero a nice, familiar place to return to after finishing a level. Super Mario Galaxy has Rosalina’s home planet; Super Mario 64 has Peach’s Castle. Those felt homey in a way that, frankly, Super Mario Odyssey’s version doesn’t. Instead of an area to run around between his travels, Mario and his magical pal Cappy hang out in their hat-shaped ship, the Odyssey. It’s really quaint ... maybe too quaint. But at least it has a fun costume closet to play with.