«The Secret Minus World». Arxivat de l'original el 24 gener 2018. [Consulta: 14 març 2018]. «American gamers eager for more Mario stuff went bonkers when the above trick got out. Of course, since both the Japanese and American versions of the game are the same, this trick exists in the Japanese version too, and Japanese gamers got a kick out of it, of course. But while American gamers were freaking out about a measly single level that goes on forever, Japanese gamers were going crazy about something much more: a trick to reach 256 different levels!»
«Using the D-pad to Jump». Iwata Asks: Super Mario Bros. 25th Anniversary Vol. 5: Original Super Mario Developers. Nintendo of America, 01-02-2011. Arxivat de l'original el 3 febrer 2011. [Consulta: 1r febrer 2011].
«The Secret Minus World». Arxivat de l'original el 24 gener 2018. [Consulta: 14 març 2018]. «American gamers eager for more Mario stuff went bonkers when the above trick got out. Of course, since both the Japanese and American versions of the game are the same, this trick exists in the Japanese version too, and Japanese gamers got a kick out of it, of course. But while American gamers were freaking out about a measly single level that goes on forever, Japanese gamers were going crazy about something much more: a trick to reach 256 different levels!»
«Using the D-pad to Jump». Iwata Asks: Super Mario Bros. 25th Anniversary Vol. 5: Original Super Mario Developers. Nintendo of America, 01-02-2011. Arxivat de l'original el 3 febrer 2011. [Consulta: 1r febrer 2011].
