List of unreleased media

Template:Distinguish2 Due to various reasons (ranging from being of poor quality, being produced for a failed or soon-to-be-discontinued system or having its developer facing financial or legal woes), a game can end up being cancelled and cease production. Despite their status, concepts present in cancelled games can be reused in commercial releases, and some cancelled games are repurposed into different projects.

A game in development can also end up being vaporware, a term for projects that are announced on which development is started but, for a possible variety of reasons, were never published.

Following is a list of cancelled Mario games and vaporwares.

List of cancelled Mario games and vaporware

Game	System	Reason/Description
Return of Donkey Kong	Nintendo Entertainment System	A sequel to Donkey Kong, cancelled for unknown reasons.
Donkey Kong no Ongaku Asobi	Nintendo Entertainment System	A music-based spin-off of Donkey Kong, also cancelled for unknown reasons.
Super Mario's Wacky Worlds	CD-i	Was cancelled due to the CD-i's drop in popularity.
Mario Takes America	CD-i	Cancelled due to Philips being unsatisfied by the development's progress.
Donkey Kong	CD-i	Cancelled due to the CD-i's drop in popularity.
VB Mario Land	Virtual Boy	Cancelled due to the discontinuation of the Virtual Boy.
Donkey Kong Country 2: Diddy's Kong Quest	Virtual Boy	Also cancelled due to the discontinuation of the Virtual Boy.
Virtual Boy Mario Kart	Virtual Boy	Also cancelled due to the discontinuation of the Virtual Boy.
Argonaut Yoshi platformer	Nintendo 64	Third-party pitch unlikely to be approved by Nintendo (unofficially cancelled). It was sometime reworked into Croc: Legend of the Gobbos.
Mario Artist: Game Maker	Nintendo 64DD	Cancelled due to the failure of the Nintendo 64DD.
Mario Artist: Graphical Message Maker	Nintendo 64DD
Mario Artist: Sound Maker	Nintendo 64DD
Mario Artist: Video Jockey Maker	Nintendo 64DD
Super Mario 64 2	Nintendo 64DD	Abandoned due to a lack of progress and the failure of the Nintendo 64DD. Certain aspects were carried over to Super Mario Sunshine and Super Mario 64 DS.
Luigi's Mansion	Nintendo 64	Got reworked to the Nintendo GameCube and kept the name.
Super Smash Bros. 2	Nintendo 64DD	Got reworked into Super Smash Bros. Melee for Nintendo GameCube.
Mario Paint 64	Nintendo 64DD	It had many processors when playing and the original mouse.
Ultra Donkey Kong	Nintendo 64DD	Also known as Donkey Kong World and Donkey Kong Universe while in development. Got reworked into Donkey Kong 64.
Super Mario RPG 2	Nintendo 64DD	Due to complications involving Squaresoft, it was reworked into Paper Mario and released as a standard Nintendo 64 title.
Diddy Kong Pilot	Game Boy Advance	Not finished before Rare was bought by Microsoft in 2002 and Nintendo not approving of the concept. It was later reworked into Banjo Pilot.
Donkey Kong Coconut Crackers	Game Boy Advance	Much like the aforementioned Diddy Kong Pilot, it was not finished before Rare joined Microsoft. It was eventually reworked into It's Mr. Pants.
Donkey Kong Racing	Nintendo GameCube	Much like how Diddy Kong Pilot and Donkey Kong Cocount Crackers were unofficially abandoned, it has not been finished before Rare joined Microsoft. However, unlike the aforementioned games, this project was entirely cancelled instead of being reworked.
Yoshi Touch & Go	Nintendo GameCube	Got reworked onto the Nintendo DS with the same name.
DK Bongo Blast	Nintendo GameCube	Got reworked onto the Wii as Donkey Kong Barrel Blast.
Super Paper Mario	Nintendo GameCube	Got reworked on Wii with the same name.
Super Mario Spikers	Wii	A cancelled volleyball-wrestling hybrid game in development for Wii by Next Level Games.