Mario Tennis Fever

Mario Tennis Fever is a 2026 sports video game developed by Camelot Software Planning and published by Nintendo for the Nintendo Switch 2. The game is part of the Mario Tennis series, and is the successor to the Nintendo Switch game Mario Tennis Aces (2018). Mario Tennis Fever introduces Fever Rackets, which can perform powerful Fever Shots with a variety of different effects. Additionally, elements from the platform game Super Mario Bros. Wonder (2023) are integrated into the setting. The game contains an Adventure game mode in which the Mario cast have to re-learn how to compete in tennis after being transformed into babies. The game received mixed to positive reviews from critics upon release.