Super Mario Kart R (partially found pre-release version of "Mario Kart 64"; 1995)
Mario Kart 64 is a video game released in 1997 for the Nintendo 64. The game is a sequel to Super Mario Kart, and has players play as various Mario characters, racing in go-karts and using Mario-themed items as combat. The game was the first game in the Mario Kart series to have 3D graphics, as well as many memorable courses and features that are still represented in Mario Kart today.
The game was originally named Super Mario Kart R (the R meaning "rendered"). An early build of the game was shown at the Shoshinkai Software Exhibition 1995 (known as Nintendo Spaceworld in other parts of the world). This build, with several differences from the final game, hasn't fully surfaced or dumped.
At the Shoshinkai Software Exhibition 1995, the Ultra 64, later known as the Nintendo 64, was shown off for the first time to the general public. Along with the reveal, 30 games were revealed or had playable demos. One of these was Super Mario Kart R.
The game was presumed to be very complete, with one of the main differences from the final game being that a Magikoopa, most likely Kamek, would have been playable in the game instead of Donkey Kong. The game also had the feather item from Super Mario Kart, a different item box, different title screen music, and a slightly different HUD.
The build was shown off at Shoshinkai Software Exhibition 1995 and in several magazines. The build then fell into obscurity in the years after, with only screenshots and videos proving the builds' existence.
In July 2020, a large "Gigaleak" revealed the source code, assets, and cut material of many Nintendo games. While the leaks did not include the full Super Mario Kart R build, some of the assets that did leak include a unseen town-like track (mentioned in a developer interview), several graphics of cut items, and other graphics. These assets came from from the iQue version of the game released in China, however their origins point to around the timeframe of the Super Mario Kart R build. While the leaks have shown promise, the build has a slim chance of ever fully leaking, as Nintendo is well-known for protecting early builds of their games.
- BS Super Mario Collection (partially lost Satellaview broadcast versions of compilation platformer; 1997-1998)
- Mario Artist (lost builds of unreleased Nintendo 64DD games; 1999-2000)
- Mario's Castle (lost build of cancelled game on Nintendo's "Project Atlantis" handheld console; existence unconfirmed; 1995-1998)
- Mario Demo (lost Virtual Boy tech demo; 1994)
- Mario's Face (lost Nintendo DS tech demo; 2004)
- Mario Motors (lost build of unreleased Nintendo DS racer; early 2000s)
- Mario Kart XXL (lost Game Boy Advance tech demo; 2004)
- New Super Mario Bros. (lost early builds of Nintendo DS 2D platformer; 2004-2006)
- New Super Mario Bros. Mii (lost Wii U tech demo; 2011)
- Super Mario 128 (lost build of cancelled GameCube/Wii game; 2000-2006)
- Super Mario 64 (partially found Spaceworld '95 demo of Nintendo 64 3D platformer; 1995)
- Super Mario Bros. 3 (lost Japanese prototype of NES platformer; 1987-1988)
- Super Mario Bros. (lost Commodore 64 port of NES platformer; existence unconfirmed; 1986)
- Super Mario Disk Version aka "Super Mario 64DD" (found unreleased Nintendo 64DD port of 3D platformer; 1999)
- Super Mario RPG 2 (lost pre-release version of "Paper Mario" Nintendo 64 role-playing game; late 1990s)
- Super Mario Spikers (lost build of cancelled Wii volleyball-wrestling sports game; 2007)
- Super Mario's Wacky Worlds (found prototype of cancelled CD-i game; 1993)
- Super Mario World: Mario Attack (lost Japanese arcade game; 1996)
- Super Mario World (partially found early build of Super Nintendo platformer; 1989)
- Super Paper Mario (lost build of unreleased original GameCube version of Wii side-scrolling platformer; 2006)
- The prerelease page for Mario Kart 64 on The Cutting Room Floor. Retrieved 27 Sep '20
- The Internal Material page for Mario Kart 64 on The Cutting Room Floor. Retrieved 27 Sep '20
- Unseen 64's page on Super Mario Kart R. Retrieved 23 Sep '20
- A page with several images of Super Mario Kart R. (archived) Retrieved 27 Sep '20
- Nintendo Everything article mentioning the cut track. Retrieved 27 Sep '20
- A Reddit post with the cut items and corresponding graphics. Retrieved 27 Sep '20