Super Mario Bros. Wonder’s final badge, Sound Off, is by far the most difficult in the game to unlock.
The Mario Bros. Wonder Sound Off badge is the final unlockable in the game, and you’ll need to see everything the game has to offer and then defeat an exceptionally tough stage in order to unlock it.
Badges are new powers and modifiers which players unlock during the game, which can be equipped and swapped out before each level.
The Sound Off badge is one of Mario Wonder’s most unique. If you want to find out what it does, and how to unlock it, then read on for our guide below.
Mario Bros. Wonder: What is the Sound Off badge?
The Sound Off Badge is likely the final badge you will unlock in the game, requiring players to see absolutely everything and to defeat a super-tough final challenge.
Once activated, the badge replaces all major sound effects with an a cappella equivalent, i.e. a voice actor making silly sound effects with their voice.
Mario Bros. Wonder: How to unlock the Sound Off Badge
In order to unlock the Sound Off Badge, you’ll need to unlock and complete Wonder’s secret final stage, The Final-Final Test Badge Marathon.
This level is unlocked once you collect every Wonder Seed in worlds one through six, and the Petal Isles, and the Special World.
The Final-Final Test Badge Marathon is a five-star level which requires players to complete a course using every major badge in the game.
Once you’ve completed this course, a final house, ‘Wonder?’ will unlock and thank you for playing the game. Your reward is the Sound Off badge. Congratulations!