Mario Tennis Fever Takes To The Court With A Small Day One Game Update

If you plan on picking up Mario Tennis Fever on the Switch 2 this week, be ready for a day one update bumping the new software up to Version 1.0.1.

According to Nintendo's official patch notes on its Japanese website, the development team has apparently fixed some issues to improve the gameplay. Like other Nintendo titles nowadays, this launch update is also required to access the game's Switch Online features.

Once you've completed this update, you'll no longer be able to play locally or via LAN with older versions of the game - so make sure you are running the same version when playing together with family and friends.

As our reviewer PJ O'Reilly mentioned in his Mario Tennis Fever review, the main adventure mode is a bit of a letdown, and solo players don't have a lot of options, but there's depth and strategy at the core here that should see this one ace things online for some time to come. So you'll want to get online play up and running!

As part of this launch, Nintendo has also released a new set of Mario Tennis Fever Switch Online icons today. New waves will be available every week until 11th March 2026. These icons will set you back 10 Platinum Points each, and as usual, the borders and backgrounds go for 5 Platinum Points each.

Will you be picking up Mario Tennis Fever now that it's available on the Switch 2? Let us know in the comments.