Mario Tennis Fever (Switch 2): all the updates (latest: Ver. 1.0.3)

Lite_Agent 23 April 2026 Camelot, Mario Tennis Fever

On this page, you will find all there is to know about the various updates for Mario Tennis Fever on Nintendo Switch 2.

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Mario Tennis Fever – Ver. 1.0.3

Release date: April 22nd/23rd 2026
Patch notes:

We have strengthened countermeasures and readjusted the timing of when rankings are adjusted to address a bug where rankings are not adjusted on the 1st of each month at 5:00 P.M. (Pacific time) for Ranked Match.

Balance adjustments are planned for future updates.

Additional notes: none
Source: Nintendo

Mario Tennis Fever – Ver. 1.0.2

Release date: March 26th/27th 2026
Patch notes:

Changes to Character Specifications

Changed specifications of some characters.

Character	Change(s)
Diddy Kong	Slightly increased the strength of shots and serves.
Dry Bones	The distance the ball can be hit back stably from has been increased slightly. Slightly increased the ability to aim for the sidelines.
Baby Peach	The distance the ball can be hit back stably from has been increased slightly.
Toad	The distance the ball can be hit back stably from has been increased slightly.
Shy Guy	The distance the ball can be hit back stably from has been increased slightly.
Donkey Kong	The distance the ball can be hit back stably from has been reduced slightly. Made it so you start running a little later when moving. The motion extended significantly beyond the hit detection area while moving left or right, so his motion has been adjusted.
Petey Piranha	The distance the ball can be hit back stably from has been reduced slightly. Made it so you start running a little later when moving.
Rosalina	The distance the ball can be hit back stably from has been reduced slightly.
Wiggler	The distance the ball can be hit back stably from has been reduced slightly.

Changes to Fever Racket Specifications

Changed specifications of some Fever Rackets.

Racket Name	Change(s)
Golden Dash Racket	Effect period has been shortened from 12 seconds to 8 seconds.
Metal Racket	Effect period has been shortened from 10 seconds to 8 seconds. While the effect is active, you are now able to defeat Spinies from the Spiny Racket.
Star Racket	Effect period has been shortened from 10 seconds to 8 seconds. While the effect is active, you are now able to defeat Spinies from the Spiny Racket.
Magic Racket	Effect period has been shortened from 15 seconds to 12 seconds. If the racket is already a Frying Pan, the motion of it transforming into a Frying Pan will no longer occur. (You still take damage to your HP.)
Ghost Racket	Effect period has been shortened from 15 seconds to 12 seconds. For lobs, the time for it to disappear has been lengthened by 0.5 seconds, giving you slightly more time to see the trajectory of the shot.
Inky Racket	The time from when ink gets on the screen to when it starts dripping down has been cut in half.

Changes to Shot Behavior

Made an adjustment so sliding and leaping do not occur when you perform a charge cancel. (However, the behavior remains the same as Ver. 1.0.1 for multiball.)

Other Changes

Fixed a bug where ratings were not being adjusted on the last day of each month at 5 P.M. (Pacific time).
Fixed a bug where the event would not proceed after the “In the Sky” battle in Adventure. Also adjusted it so the event will progress if you resume from save data following that point where the event does not proceed.
Several other adjustments and fixes have been made to improve the gameplay experience.

Additional notes: none
Source: Nintendo

Mario Tennis Fever – Ver. 1.0.1

Release date: February 11th/12th 2026
Patch notes:

Several issues have been addressed to improve the gameplay experience.

Additional notes: none
Source: Nintendo

Mario Tennis Fever – Ver. 1.0.0

Release date: February 5th 2026
Patch notes:

No patch notes available. This is the base version of the game.

Additional notes: none
Source: game

How to download updates for Mario Tennis Fever on Nintendo Switch 2?

To download the updates for Mario Tennis Fever, you have three options:

let the console do its thing if you have automatic downloads activated, and didn’t completely turn it off

If not…

try to launch the game from the Home Menu while being connected to the internet. You should get a prompt when doing so: simply follow the instructions on screen;

select the game > press either + or – to go to the Options page > select Software update > select Via the Internet.

To check that you have the latest version installed, simply select the game on the Home Menu, and press – or + to go to the Options: the version number is displayed just below the game title.