It promotes bags and other merchandise themed after Mario and Luigi ahead of the global release of Mario and Luigi: Brothership in early November 2024.
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Mario and Luigi: Brothership will be available on Nintendo Switch simultaneously worldwide on November 7, 2024.
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The game is also alternatively known in Japan with a slightly different title, which is Mario and Luigi RPG: Brothership.
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Even though the goods have been available since long before the release of Mario and Luigi: Brothership, Nintendo still has ample stocks for most of them in its storefronts in Tokyo, Osaka, and Kyoto.