* {{Defictionalization}}: [[http://digibutter.nerr.biz Digibutter.nerr]] is now a fansite for ''Paper Mario'' games.
* WhatCouldHaveBeen:
** There ''had been'' talk of making a film adaption, most likely an {{Anime}} film. However, almost as soon as it was mentioned, it was canned or shelved; nobody heard anything about it again. Too bad...
*** Seth Gordon (who also directed ''The King of Kong'') expressed interest in directing a movie based on the game at one point, which would have been a 3D movie that would've used the effects in lieu of flipping. Nothing came of it.
** The game was initially going to be a GameCube title that would have been released in 2006. Leftover graphics from the GameCube version remain unused in the game's files.
** Mario would have been given the ability to flip into 3D by a Pixl that was shaped like a ladder.