Nintendo has announced that they are running a new retweet campaign for the upcoming Bowser Vs Donkey Kong Tour in the hit mobile title, Mario Kart Tour. To take part simply retweet the tweet that is embedded below. Nintendo says that all Mario Kart Tour players will get coins equal to the number of retweets that the tweet below gets. The maximum number of coins that players can get is 10,000. The promotion is taking place until 2nd May. Mario Kart Tour is available now on both iOS and Android.