Wahoo! March 10 is National Mario Day, which honors one of the most iconic video game characters ever created… Mario. The date, when written as “Mar10,” kind of resembles the name “Mario” — making it an oh-so-fitting day to honor everyone’s most favorite plumber.

The retro games becoming available to Switch Online members for March 2025 hail from the Game Boy library, and with Mar10 Day just around the corner, you can guess who is featured. Donkey Kong / Donkey Kong ‘94 starts with the arcade game’s four levels,

Nintendo Switch Online has two new free games, both of which are Game Boy games and both of which are Super Mario games.

Nintendo Switch Online has added two more games to the Game Boy library, as you can play Donkey Kong '94 and Mario's Picross

Mario’s Picross and Donkey Kong is now available to play for Nintendo Switch Online members. Check out the Nintendo Switch Online Game Boy update trailer for March 2025 to see the puzzle game Mario Picross (originally released in 1995) and gameplay from Donkey Kong (originally released in 1994).

Nintendo has added two more Game Boy titles to its Switch Online subscription catalogue - and you can play them right now. 1994 classic Donkey Kong is the star of the show here - the highly-regarded puzzle platformer that serves as a continuation of the classic DK arcade game,