In Mario Kart: Double Dash, many tracks are themed around a certain character (e.g. Mario Circuit, Peach Beach, Daisy Cruiser etc.) However, there is evidence in the game’s files that four more tracks were supposed to be themed after a single character each, in the form of their internal filenames (note that Nokonoko and Patapata are the Japanese names for Koopa Troopa and Koopa Paratroopa, respectively).
-Baby Park was originally planned to be Baby Luigi Park, focusing specifically on him and not on both Baby Mario and Baby Luigi.
-Mushroom Bridge was supposed to be Koopa Troopa Bridge.
-Mushroom City was supposed to be Koopa Paratroopa City.
-Finally, Dino Dino Jungle was supposed to be Diddy Jungle, which would have fit together with DK Mountain, another jungle-themed track in the game.
Main Blog | Twitter | Patreon | Small Findings | Source