Mario Kart Challenge it's one of the newest flash Mario kart racing games. You can play the game here on vitalitygames for free along with hundreds of new pupugames with Mario and Sonic all day. Play online the best and the coolest Mario and Sonic games here on vitalitygames. In this new racing challenge there is a race on the Mario world. Mario will be racing against his friends and his enemy.It will be a long race before a trophies will be given to the best racer. You can select differentcharacters to race by collect enough coins to reveal them. So have fun here on vitalitygames with some of the newest and best 2D,3D and unity Mario racing games. Good luck and have fun!