Mario Kart Live: Home Circuit is coming to Switch on October 16, and ahead of release Nintendo has shown off exactly how the game works and what you'll get in the box. This overview trailer shows how you can build a track within your home, and the various options available to you.
There are details in the trailer about how items can change the speed of your kart in real life as well as in the game, and you can race at up to 200CC. You assemble the four cardboard gates in the box as you see fit, and then design a track by driving through them--the path you take between gates determines the track layout.
It's recommended that you have at least a 10x12ft space to work in, and although the trailer is not explicit about needing hardwood floors, there certainly hasn't been any rugs or carpet in any of the marketing materials released so far.
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