https://nintendowire.com/news/2019/10/21/king-boo-waluigi-waluigi-pinball-headed-to-mario-kart-tour-this-week/
King Boo, Waluigi, Waluigi Pinball headed to Mario Kart Tour this week – Nintendo Wire
Dec 19, 2019 - King Boo and Waluigi, along with the latter's iconic "Waluigi Pinball" stage, will be headed to Mario Kart Tour alongside Luigi during the game's "Halloween
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