Mario Tennis Fever – Full Game Walkthrough (Story Mode)

In this video, I play through Mario Tennis Fever on Nintendo Switch 2 with a complete Full Game Story Mode (Adventure Mode) walkthrough. The entire main story is shown from start to finish as Mario travels through each area, clears the required matches and challenges, and overcomes the game’s unique boss encounters on the way to the final showdown against Bowser & King Scuttlebug. The run ends with the full Ending and Staff Credits, making this the complete story campaign in one structured playthrough. ►Timecodes 00:00:00 - Intro 00:06:12 - JV Class: Mushroom Tennis Academy 00:37:09 - Rank E: Mushroom Tennis Academy 00:54:31 - Rank D: Mushroom Tennis Academy 01:06:32 - Rank C: Mushroom Tennis Academy 01:17:48 - Rank B: Mushroom Tennis Academy 01:27:52 - Rank A: Mushroom Tennis Academy 01:44:57 - In the Sky & Waterfall Basin 02:02:00 - Ice Ruins 02:12:29 - Limestone Cave 02:18:31 - Heavy Forest 02:33:52 - Foggy Swamp 02:43:06 - Valley of the Monster 02:56:13 - Final Boss: Bowser & King Scuttlebug 02:59:50 - Ending & Staff Credits ►Game Informations: ▪Developer: Camelot Software Planning ▪Publisher: Nintendo ▪Series: Mario Tennis ▪Platform: Nintendo Switch 2 ▪Release dates: February 12, 2026 ▪Genre: Sports game ▪Modes: Single-player, multiplayer ▪Playtime: 4+ hours