Super Mario Bros. Wonder introduces the Wonder Flower, a transformative item that triggers unpredictable events in each level. These effects include pipes coming to life, terrain tilting, character transformations, and gravity shifts, requiring players to adapt their platforming strategy in real-time to collect Wonder Seeds.

The game supports local cooperative play for up to four players on a single Nintendo Switch console. Additionally, the online connectivity feature allows players to see shadows of other users playing globally, share items, and revive teammates, creating a collaborative environment without direct competitive interference.

Players can equip various badges throughout the game to customize their characters abilities. These badges provide unique perks such as enhanced jumping height, the ability to glide, or the capacity to detect hidden items, allowing for tailored gameplay styles that can be swapped before starting a level.

This edition includes an exclusive invitation to a scheduled community meetup at Bellabel Park. This event provides a verified platform for players to engage in local multiplayer sessions, exchange in-game tips, and participate in organized social activities centered around the Super Mario Bros. Wonder experience.