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Waluigi is one of the more interesting tracks in MKDS, interesting in that it features characteristics that are virtually no where to be found in other maps, such as being able to drive down huge eminences and bump into a pinball pin. Most of the technique in this level is naturally acquired, which means you're better off practicing on the level for the Grand Prix cup, but not excessively since Waluigi Pinball is not supported via Nintendo Wi-Fi Connection.