Among things that have been discovered include...
A lot of early Yoshi's Island stuff, including a mysterious prototype know as "Super Donkey"!
Rad animated map!
A bunch of Nintendo prototypes are apparently currently being compiled from leaked source code right now as of this post
— AK (@Akfamilyhome) July 24, 2020
First up there's this Yoshi's Island proto with different UI graphics, placeholder music from Mario World, and has a prefix of 'Super Mario Bros. 5' pic.twitter.com/Qqock5RZaS
Yoshi's Scorched Napalm World
Interesting mini game #2 (Level 4-1, Door #8)
— potatoTeto (@potatoTeto) July 24, 2020
Mario hands Yoshi missiles, so he can destroy wooden houses. Bandit seems to serve as another obstacle in the field; The Bandit's HUD (DoRoBō) seems to be the number of buildings remaining#yibeta #yoshisisland #gamedev pic.twitter.com/kUJgI6ZLR9
Never let a good idea go to waste
Out of all this lovely new Prototype Content, "Super Donkey"'s ground pound producing the same "cloud things with faces" as the Mario Maker Goomba Shoe's ground pound is the thing that has me completely floored. pic.twitter.com/IXIa8hGOHH
— Shenaniganza (@dbMisadventure) July 24, 2020
Moomin Bowser
apparently the final boss in yoshis island was supposed to be this pic.twitter.com/79YuoLtPA4
— 💜Maddy🧡 (@saladplainzone) July 24, 2020
Yoshi was apparently going to escort a random wizzard baby at one point. How odd!
Salaryman lungefish!
Um...
— rockcock64 (@rockcock64) July 24, 2020
THIS is in the Yoshi's Island source code. pic.twitter.com/KcPNG1T2ul
A very early Super Mario Kart build!
There's also this slightly broken Super Mario Kart build with no drifting (?) and unused tracks, including a unique title theme
— AK (@Akfamilyhome) July 24, 2020
Versions of games like Mario All-Stars and Mario RPG have also been found and are being researched into rn pic.twitter.com/YMHaiLjXmd
Also tons of early Super Mario World sprites!
Evolution of the Yoshi species over millenias of adaptation
The evolution of Yoshi, as revealed in the recent Nintendo leaks. pic.twitter.com/udi3QPINww
— felineki (@felineki) July 24, 2020
Early Blargg!
Looks like an early version of Blargg and other enemies are in this screenshot. pic.twitter.com/tEydPvUqFx
— Gaming Alexandria (@GamingAlexandri) July 24, 2020
Bowser cut off his legs for the final version of Super Mario World. (He was very dedicated to the part)
People are digging up all sorts of unused art assets from the latest Nintendo leak. Here's some screenshots of some examples. Bowser from SMW apparently had legs at one time? pic.twitter.com/EZGDjiGAx6
— Gaming Alexandria (@GamingAlexandri) July 24, 2020
This twitter thread look at a lot of ressources, but if I have an highlight, it's Wiggler with a dunce cap!
Mario with a pilot cap!
Looks like Mario might have had a pilot helmet when he wore the cape in early SMW. Hard to say but makes sense. pic.twitter.com/koZUYJgbsm
— Gaming Alexandria (@GamingAlexandri) July 24, 2020
Gritty Koopa redesigns!
Look at these early Koopas and Yoshi! pic.twitter.com/QPJwpjSvS1
— Gaming Alexandria (@GamingAlexandri) July 24, 2020
What are your favourite findings? And got anything else of interest not yet in this post?