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 * Petey Piranha (pictured) has a different gender depending on the region. In North America, Great Britain, Italian, and Spanish (in most games), Petey Piranha is male. In France, Petey is female and named "Flora Piranha", derived from "Flora"; the Spanish version of New Play Control: Mario Power Tennis also uses the French name. In Germany, the plant is gender-neutral. In the Japan-exclusive Super Mario-Kun, Petey is depicted as a female, and a mother of several Piranha Plants.
 * The character Ravio from The Legend of Zelda: A Link Between Worlds has a similar appearance to Nabbit, as pointed out by several fans commenting on a Miiverse screenshot showing the character. However, Satoru Iwata, during the October 1, 2013 Nintendo Direct, ended up dismissing the similarities as an unintentional coincidence.
 * The fact that Ghost T. resides in Room 004 of Excess Express is a reference to Japanese and Chinese culture in which the number four (四; Rōmaji: shi, Pinyin: sí) is regarded as unlucky and sounds similar to the word "death" (死; Rōmaji: shi, Pinyin: sí).
 * In the Japanese version of Mario Kart 64, Luigi, Toad, Peach, and Wario have different voice clips than their American counterparts, while other characters do not. The Japanese voice clips were reused in the first two Mario Party games and Mario Kart: Super Circuit. Also, Toad, Donkey Kong, and Bowser are referred to as Kinopio, D. Kong, and Koopa respectively.