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 * On the cover of Super Mario Galaxy 2 (pictured), a ? Block and a Goomba both appear on Starship Mario, even though neither of these things ever appear on Starship Mario in the actual game. Also, the Warp Pipe has been repositioned, as it now appears higher up on Starship Mario's cap, as opposed to in its left ear.
 * A 2001 patent filled by Nintendo for a gaming smartphone had Super Mario Bros. Deluxe as one of the phone's built-in games.
 * Mario & Sonic at the Olympic Winter Games is currently the only game in the Mario & Sonic series to be released on both consoles on the same day (except Japan and South Korea).
 * In Wario Land: Shake It!, the treasure named "Peach Sandals" is a reference to Princess Peach. The item's description says that it belonged to a princess.