With the rules being explained in the first few seconds of the clip simply being "don't get caught" you know you're in for fun.
Taking Mario Kart to the next level, these racers go around Westfield Shopping Mall on Black Saturday. The drivers, dressed Mario, Luigi, Bowser, Princess Peach, "Donkey Kong", Waluigi, and Yoshi, went around the mall and other shoppers finally making their way down to the parking garage.
Somehow they avoided mall security, but were thwarted in the end. Coconut Mall, this ain't. Considering these mall crashers got away with editing the footage and putting it online, they hopefully got away with a warning.