Development:Super Mario World 2: Yoshi's Island

This page details development materials of Super Mario World 2: Yoshi's Island.

This page or section details content from the July 2020 Nintendo Leak. Check the July 2020 Nintendo Leak category for more pages also sourced from this 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.

See also Super Donkey, an unreleased game that shares a number of elements with Yoshi's Island and may be its precursor.

Sub-Pages

Sprites Move over Mario...

Level Backgrounds Woah...

Development Text

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 info and programmer credits.

  * 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