A franchise called “Super Mario baddies” has been spotted as a filter option on the official Nintendo website for the Americas.

When filtering games that include “Super Mario baddies”, two games, Super Mario Party Jamboree and Mario Party Superstars, will appear in the search results. It appears that “Super Mario Baddies” refer to Wario and Waluigi, as both characters are playable in both Super Mario Party Jamboree and Mario Party Superstars, and Waluigi is the character that represents the “Super Mario baddies” on the official website.

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