To celebrate MAR10 Day (ie March 10), Nintendo arranged a collaboration with Google Maps so that people looking to use Maps as a GPS can show Mario in his go-kart instead of the usual blue arrow.
By choosing to go from your current location to your destination, and then clicking the grey Question Block next to the ‘Start’ button, you can activate Mario mode instead. This function will be available until March 17, 2018, one week after it starts.
— Nintendo of America (@NintendoAmerica) March 9, 2018
Furthermore, Nintendo announced that Super Mario Run’s one-time payment will be at half price starting today until March 25, 2018. Super Mario Run is available for iOS and Android