Proto:Super Mario Kart
This page details one or more prototype versions of Super Mario Kart.
|This article is a work in progress.|
...Well, all the articles here are, in a way. But this one moreso, and the article may contain incomplete information and editor's notes.
Multiple prototypes of Super Mario Kart were leaked alongside source code on July 24, 2020. They partially span almost the entire development cycle and show how often this racing classic has changed over time, but also how it shaped all later games in the series.
| 1991 Alpha|
A very early driving test including hovercrafts!
| November 29, 1991 Proto|
A rapid-fire gun battle, a Coin Runners mode, and a top-down view à la Mario Kart DS? It's all here.
| February 13, 1992 Proto|
This build contains extra title menu options like viewing records and items/no items race modes. It's also notable for the temporary removal of Battle Mode.
A third Choco Island track? This early build also features elements seen in some prerelease videos and pictures like the early Donut Plains 1 track.
Rainbow Road could've been much harder. This build is very similar to the well-known unreleased prototype.
A similar, more unstable build to kart_* with no way to unlock Special Cup.
More things have been implemented while still missing the Nintendo polish.
Even more things are finalized, but this features a build-exclusive debug mode for Time Trial.
Appear to be internal testing builds that span the last days of development.
| Debugging Menus|
Many Debug Menus from various builds with a lot of features, including a track editor!
Identical to the final japanese build, but with the debug menu and commands implemented. Additional the win sequence after finishing a race can be skipped by pressing start, pressing select in a race will freeze the game and there is one extra change in debug mode that allows to display entire track previews. This build was possibly used for capturing footage for medias such as magazines, promos and the game's manual. (Debug menu requires a hex edit to make it accessible, see Debugging Menus subpage for more info)
The debug commands found in the final game also work in the precompiled prototype builds. These can also be activated without Cheat codes by starting a race from the debug menu and pressing a certain button combination. The RAM viewer that crashes the final game at race start (Pro Action Replay code 7E1F0608) does not crash in builds that have the Debug Menu implemented like the May Build (kart_*) and can accessed without action replay codes too.
|"1991 Alpha"||other.7z/NEWS.7z/テープリストア/NEWS_05/NEWS_05.tar/home/kimura/exp||18 Apr 1991 - 25 Jul 1991||Uncompiled|
|game.hex||other.7z/NEWS.7z/テープリストア/NEWS_05/NEWS_05.tar/home/kimura/games/temp||29 Nov 1991||Uncompiled|
|mario-kart.hex||other.7z/NEWS.7z/テープリストア/NEWS_05/NEWS_05.tar/home/kimura/kart/mak||13 Feb 1992||Uncompiled|
|mkart.rom||other.7z/NEWS.7z/テープリストア/NEWS_05/NEWS_05.tar/home/kimura/util||13 Apr 1992||1863f951a0a5db07a3397106bd89d9f11acfe1a3|
|18 May 1992
05 Aug 1992
|kart.rom||other.7z/NEWS.7z/テープリストア/NEWS_05/NEWS_05.tar/home/kimura/kart/risc.lzh/mak/||09 Jul 1992||aedec7fffaf14e5b983c39477251922f132a5adb|
|14 Jul 1992||99241cc8a2c78f59d78f916f3ce3f215ad991338|
|14 Jul 1992||abbc7e553d530f2935fd895d4f688c8878dd0bd2|
|other.7z/NEWS.7z/テープリストア/NEWS_05/NEWS_05.tar/home/kimura/mak||14 Jul 1992||b2b754272d86e3f72355412d82d5d590a83b822b|
|other.7z/NEWS.7z/テープリストア/NEWS_05/NEWS_05.tar/home/kimura/kart/mak||06 Aug 1992|
|other.7z/NEWS.7z/テープリストア/NEWS_05/NEWS_05.tar/home/kimura/mak||06 Aug 1992||76d56a41767625e6da1b8a9c8342f17aa9c1f7b0|
|kart-d.bin||other.7z/NEWS.7z/テープリストア/NEWS_05/NEWS_05.tar/home/kimura/kart/risc/mak||04 Sep 1992||Todo|