By combining the powers of Mario and Cappy, you can get a lot of extra hang time in Super Mario Odyssey, perfect for clearing those extra-long gaps — and for going where you're not "supposed" to be. In case you don't want to watch a video, I break it down in slideshows below.
In addition to this move, you can also use Cappy to get a wee bit of extra manoeuvrability when you're attempting to do a standing jump to a high platform, letting you get up onto things you otherwise could not.
Finding any other useful, hidden combinations of moves in Super Mario Odyssey? Let us know.