Not everyone may know this, but March 10 is an unofficial day started by gamers to celebrate Nintendo's most beloved character, "MAR10". To celebrate this fine occasion, Google will update the Google Maps app for iOS and Android to feature Super Mario driving a Kart. Mario will appear as your location arrow while navigating starting tomorrow. The update is already rolling out though we have not received it just yet. In order to summon Mario, you'll first have to be updated to the latest version of Google Maps. Choose a place or address to navigate to and you'll see a "?" block next...
Source: https://www.gsmarena.com/mario_drifts_into_google_maps_for_a_week_in_celebration_of_mario_day-news-30025.php