Summary

Mario Tennis Fever debuts with 30 fever rackets charging a gauge for special shots like freezing courts, shadow clones, or mini-mushroom chaos. Features 38 playable characters, the largest roster ever, across Tournament Mode with Talking Flower commentary, progressive-challenge Trial Towers, and Mix-It-Up with wild rules and Wonder effects. Story Mode kicks off with Mario and friends baby-fied by an island mishap, relearning tennis to beat monsters. Supports local and online multiplayer with separate ranked leagues for fever vs classic play, plus realistic swing controls via Joy-Con 2 motion. Nintendo Switch 2 exclusive launching February 12, 2026, blending arcade accessibility with competitive depth ideal for parties.