Prototype versions of classic Nintendo games including Yoshi’s Island, Super Mario Kart and Star Fox appear to have leaked onto the internet.
The early demos are said to be part of an alleged leak ofNintendosource code, which could be linked toa larger breach of legacy Nintendo datawhich was first reported in May.
So far videos claiming to show early prototypes of Super Mario Kart and Super Mario World 2 (Yoshi’s Island) have appeared online, supposedly repurposed from the leaked source code. Early sprite artwork for Super Mario World and others also appears to have leaked online.
Update 25/07:
The videos claiming to show prototype versions of Yoshi’s Island are the most significant, showcasing entirely new UI and levels. One prototype for Mario World 2 – called “Super Donkey” – shows an entirely new character in a forest environment.
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According to an anonymous post on the 4chan forum, the leak also includes the source code for F-Zero,Legend of Zelda: A Link to the Past,Super Mario RPG, Super Mario All-Stars, Link’s Awakening DX, Star Fox 2, Wild Trax andPokémonDiamond and Pearl.
The leak is also said to include data for the Wii Shop Channel, a Wii Game Boy emulator, China’s iQUE service and more.
There’s also this slightly broken Super Mario Kart build with no drifting (?) and unused tracks, including a unique title themeVersions of games like Mario All-Stars and Mario RPG have also been found and are being researched into rnpic.twitter.com/YMHaiLjXmd
this proto is top tierpic.twitter.com/NtTRelr1oE
Lots of interesting discoveries in here, including a pre-alpha (?) build of Yoshi’s Island called “Super Donkey” that starred a character who looked suspiciously like Stanley the Bugman from Donkey Kong 3. Someone needs to CTRL + F for the original Donkey Kong Country CGI models.https://t.co/PVxYd7vFb7pic.twitter.com/e5AbzNVaR6
YO MANpic.twitter.com/c6RGC9s2wg
A human in Starfox 2!pic.twitter.com/S4ug35bhYA
The data could have huge implications for the rom hack scene and allow modders to create nativePCversions of classic games and edit them.
According to various sources archived onReseteraandReddit,over 2 terabytes of Nintendo data was allegedly leaked onlinein May, including the original source code forNintendo 64,GameCubeand Wii.
Test software for the Nintendo 64, including a ‘Mirror House Cornflakes’ demo, were also allegedly included in the leaked data.
more.pic.twitter.com/YGUlLKgpoS
Look at these early Koopas and Yoshi!pic.twitter.com/QPJwpjSvS1
Early mappic.twitter.com/3i3g7OJ8lu
Presumed “ZELDA 3” scratchpad sprites from recent Nintendo leak. More research to be done.pic.twitter.com/SkTWASV9kx
Interesting mini game #3 (Door #9)Yoshi flies to steal various items from Bandit on its minecart, depositing them in Baby Mario’s cart following behind. Bandit has a predetermined score & must be beaten by the time they hit the end of the track.#yibeta#yoshisisland#gamedevpic.twitter.com/TTUi0mG1YK
The leaks also reportedly contain internal documentation related to GameCube,Nintendo DS, Nintendo 64 (and its 64DD add-on), Wii and the China-only iQue, showing how the systems work and the development processes behind them.
Of more interest to gaming archivists will be the suggestion that the full leak could also contain early Spaceworld demos of many N64 titles, however, this data is seemingly yet to surface.
Earlier this year afully functioning PC port of Super Mario 64began circulating online, following a breakthrough last year when fans were able to decompile the game’s code. However, this was created via reverse engineering the game’s source code and not via leaked data.
somebody managed to compile a working build/ROM stemming from the source codes files of Star Fox 2 that was leaked in the big GigaLeak today.This build is, none other, then the long-long-known Winter CES 1995 demo. There are supposedly other builds in the source. Stay tuned.pic.twitter.com/yaSAct3WRb
BRO!! yoshi’s island beta’s of the intro level songwhy didn’t they keep this one??pic.twitter.com/9eCPr0f2jE
Wtf - I haven’t seen this tool I made for StarFox 2 for almost 30 years, I wrote it in early c++ to teach myself the language more than anything else. Where the hell have hackers got all this obscure data from????!!https://t.co/9kN9UoQPMS
pic.twitter.com/FM394Z1zDP
Un modèle 3D qui ressemble à un Yoshi avec des sourcils. Il ressemble au Link “test” du remake de Zelda II, mais aucune idée si c’est un proto de quelque chose ou seulement des essaispic.twitter.com/82grdaq2w0
L’un des tout premier test d’engine pour Mario Kart 64 ! Les sprites de Super Mario Kart ont l’air d’avoir été utilisé comme placeholder pour faire les testspic.twitter.com/7o7KZ6BQiH
Une version plus claire des sprites de Link de profilpic.twitter.com/OYlkF7pl0U
Look at this! The intro seems completely different and the music too. There is small difference that I can noticed in twinleaf town. Sprite are different too!Crazy!!pic.twitter.com/vnXZuuBY8T
I still can’t believe we have actual graphics data for Dragonfly of all things now. today’s been like some kind of weird fever dreampic.twitter.com/FJcNy0JtQZ
The data could, in theory, be used to create illegal clone hardware able to run software and operate exactly like the original systems.
The PC emulation community could also theoretically use the data to improve their software so that it imitates the original systems perfectly. However, since the leaked documentation has been illegally obtained this would put them in murky territory.
The data is said to originate from a server hack related to BroadOn, a company Nintendo had contracted to develop Wii hardware and software.
Since 2018 various Pokémon data has been leaked online, including debug roms for Pokémon Blue, Yellow, Gold and Silver, alongside source code, Spaceworld ’99 demos and an internal GameBoy PC emulator.
