Super Mario World (partially found early build of Super Nintendo platformer; 1989)

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SMWProto Title.jpg

A photo of the build's title screen.

Status: Partially Found

Super Mario World is a 2D platforming game that was directed by Takashi Tezuka and produced by Shigeru Miyamoto. It was released for the Super Famicom in Japan on November 21st, 1990, and the Super Nintendo in North America in 1991 to universal acclaim selling over 20 million copies worldwide.


Development began in early 1987, making it one of the first games developed for the Super Famicom. The original team of 16 people, started off by porting the Nintendo Entertainment System game Super Mario Bros. 3 to the Super Famicom so they could experiment with the new hardware. Even though this version of SMB3 was just a port, it did feature improved/polished 16-bit sprites with better colours and added detail. The team then used this port as the foundation for all of Super Mario World.[1]

The 1989 Build

The "1989 build" was shown off in a Japanese magazine in 1990 and showed off many differences from the final game. Some of these differences are that the build only had a total of 16 levels, a completely different overworld world map, and a completely different small Mario sprite. Furthermore, the build also had more similarities to Super Mario Bros. 3, such as some of the build's sprites for objects and enemies being more polished versions of Super Mario Bros. 3 sprites. But, the most notable difference in the build is that the "Raccoon Leaf" powerup from Super Mario Bros. 3 appeared in the build and was fully functional.


Although the "1989 build" hasn't been seen since 1990, some photos of the build have appeared in Japanese magazines, as well as some sprites from the build appearing as unused assets in the rom for the SNES Burn-In Test Cart. In July 2020, the infamous Nintendo Gigaleak revealed the source code for many early Nintendo games, and Super Mario World was one of them. While this leak didn't include the 1989 build itself, it did include many of its assets (such as early enemy and Yoshi sprites). However, the chances of the full "1989 build" ever seeing the light of day are very slim due to the fact that Nintendo has a tendency not to leak or release unfinished builds of their games.



Beta64's video on the beta.

Lady Decade's video on the subject.


Sprites and Sprite Sheets

See Also