Mario Day

Mario Day (also written as Mar10 Day ) is an annual celebration of the entire Mario franchise. It takes place on March 10th each year, the reason being that this date, written as "Mar10", looks like Mario's name. The holiday could be celebrated by dressing up as Mario, having a Mario-themed party, or simply playing Mario games, among others. Although the holiday was not created nor declared by Nintendo, the day was unofficially celebrated by most Mario fans. Since 2016, Nintendo has officially embraced the holiday and started celebrating annually by promoting Mario games and holding Mario-themed events.

2016
In 2016, Nintendo celebrated the holiday by releasing a video on their official YouTube channel titled "Celebrate Mar. 10 - Mario Day!". The video is about a person in a Mario costume walking around Nintendo's office turning things into Mario-related objects such as turning notepads into Nintendo 3DS systems. The person also adds Mario-related stuff to the office such as several Mario plushies to a person's desk.

2017
In 2017, Nintendo celebrated the holiday by adding a free Mario-themed frame to Facebook and the Messenger Camera that could be used from March 10 at 5 a.m. PT until March 12 at 11:59 p.m. PT., by putting several Mario games on sale on Amazon, and by having several My Nintendo rewards for Mario titles such as a 30 percent off discount on Mario Kart 8. They also worked with the by providing new designs for their gowns while making a donation to create 2,000 gowns.

2018
In 2018, Nintendo partnered with Google adding Mario in Google Maps, where the user can have Mario drive around in a Pipe Frame. Users had to look for a ? Block next to the start button when the start and destination fields were filled.

2019
In 2019, Nintendo released a promotion in Europe where buyers who purchased Super Mario Odyssey, New Super Mario Bros. U Deluxe, Mario Kart 8 Deluxe, Super Mario Party, or Mario Tennis Aces between the 8th and 10th of March would receive double Gold Points. In North America Nintendo released several My Nintendo discounts on Mario games, discounted download codes for the games that where included in the My Nintendo promotion in Europe to cost $39.99 from participating retailers , and discounted Nintendo Switch systems with one of five select Mario game to cost $329.98.

Nintendo also released an episode of Nintendo Minute on their official YouTube channel titled "Mar10 Day Character Bracket: Mario’s Enemies - Nintendo Minute". In this video, series' hosts Kit and Krysta rank several Mario enemies based on several categories, such as which would be the most annoying pet. Nintendo of America made a celebratory tweet for the holiday asking how fans will celebrate Mar10 Day. There were also several Mario-related activities that took place at the Nintendo New York store, which were sponsored by Frito-Lay Variety Packs.