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Prerelease:Super Mario World 2: Yoshi's Island
This page details prerelease information and/or media for Super Mario World 2: Yoshi's Island.
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Contents
Internal Material
On July 24, 2020, a vast amount of source code from Nintendo's early consoles surfaced as well as prototypes and assets from games such as Super Mario World, Super Mario Kart, The Legend of Zelda: A Link to the Past, and more.
The leak included a large number of Yoshi's Island source files with previously-unseen assets, tools, and more.
 | Internal Material Move over Mario... |
* TITLE OF THIS WORK : ｽ-ﾊﾟ-ﾏﾘｵ ﾖｯｼｰｱｲﾗﾝﾄﾞ
* NAME OF THE AUTHOR : NINTENDO CO., LTD.
* YEAR IN WHICH CREATION OF THIS WORK WAS COMPLETED :
1995 COPYRIGHT 1995 NINTENDO CO.,LTD. ALL RIGHTS RESERVED
* PERIOD OF CREATION :
ORIGINAL PROGRAM : FEBRUARY 1, 1992 --> JUNE 29, 1995
* PROGRAMER :
TOSHIO IWAWAKI , KAZUAKI MORITA , SHIGEHIRO KASAMATSU
YOSHIHIRO NOMOTO , SHIGEKI YOSHIDA , YUICHI YAMAMOTO
SATORU TAKAHATA , EIJI NOTO , KIYOSHI KODA
YASUNORI TAKETANI , MASARU NII
KOJI KONDO
* VERSION 0.00
The file title located in the source code contains the exact dates that development on Super Mario: Yossy Island began and concluded, as well as copyright information and programmer credits.
Nintendo Power
| To do: Scrooge200 has found more in this issue. The scans were from an Internet Archive item - can't remember which, but it should be linked in the TCRF Discord somewhere. |
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Nintendo Power Issue 75 (August 1995) has two screenshots on Page 34 of what appears to be an early version of 2-2: The Baseball Boys. The first one doesn't directly correspond to a part of the level, but the second one does. In the second screenshot, the Shy Guy-spawning pipe present in the final level is missing.
US Trailer
Features a build with multiple differences from the final game.
Yoshi doesn't swap colors in this build. This was likely a prerelease debug build where all of the levels are unlocked, with Yoshi not swapping colors until he reaches the Goal (probably how some of the prototypes have the same quirk).
World 4-1
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The early version of this level contains green grass, the tropical mountain background seen in World 2-5, and a blue sky. The final version uses red grass, the red sky-mountain background, and a sunset sky.
World 4-4
| Prerelease | Final |
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The early version of this level uses a blue waterfall background and the brick castle tileset. The final uses the blue generic castle background and the blueish-gray fortress tileset.
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Sluggy the Unshaven's room uses a blue sky and the brick castle tileset. The final version uses a dark-blue sky and the blueish-gray fortress tileset.
World 4-8
| Prerelease | Final |
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The early version of this level uses the same tileset, but with a different palette. It also doesn't have the triangular-pattern flooring.
| Prerelease | Final |
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Hookbill the Koopa's room has a different palette and some enemies. The enemies were likely cut due to hardware limitations and/or to make it easier.
World 5-1
| Prerelease | Final |
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The early version of this level has the sky-mountain background with a different palette for the grass and some objects missing. The final uses the pine tree and hills background with the palette changed for the grass.
