Here's your peek at some of the courses included in Mario Kart 8 Deluxe - Booster Course Pass' Wave 3, which features 8 tracks, including Merry Mountain from Mario Kart Tour and Peach Gardens from Mario Kart DS. Mario Kart 8 Deluxe - Booster Course Pass Wave 3 arrives this holiday. #GameTrailers #Gaming #MarioKart