Mario, his brother Luigi and his friends Princess Toadstool, Toad, Yoshi, King Bowser, Donkey Kong Jr. and Koopa Troopa are all in a race to challenge each other and see who's the best racer... Read allMario, his brother Luigi and his friends Princess Toadstool, Toad, Yoshi, King Bowser, Donkey Kong Jr. and Koopa Troopa are all in a race to challenge each other and see who's the best racer in the Mushroom Kingdom.Mario, his brother Luigi and his friends Princess Toadstool, Toad, Yoshi, King Bowser, Donkey Kong Jr. and Koopa Troopa are all in a race to challenge each other and see who's the best racer in the Mushroom Kingdom.