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Proto:Street Fighter II: The World Warrior (SNES)/st2*

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This is a sub-page of Proto:Street Fighter II: The World Warrior (SNES).

How about a nice leek in this trying time?
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.

Included in the July 2020 Nintendo leak is what appears to be a late prototype of Street Fighter II: The World Warrior. This build is located within the The Legend of Zelda: A Link to the Past source at SFC\ソースデータ\ゼルダの伝説神々のトライフォース\ドイツ_PAL\Ger_asm. There are four .hex files named st20, st21, st22, and st23 which need to be combined together. This can be done using a hex editor.

General Differences

To do:
  • Check for more differences such as in text and graphics.
  • Is the Graphic Viewer present?

Title Screen

  • Attract mode demo fights appear to start slightly earlier, and play out slightly differently. For example, Ryu vs. Zangief's fight is a bit more evenly played out in terms of damage dealt.
Proto Final
Street Fighter II (Japan) (st2X.hex Proto) title.png Street Fighter II (Japan) title.png

No dots in the second option.

Proto Final
Street Fighter II (Japan) (st2X.hex Proto) VS Screen.png Street Fighter II (Japan) VS screen.png

Some values are highlighted in the V.S. mode's player select screen. The player with most wins does not have blue-colored text.

Option Mode

In the Sound Test, the staff roll theme can be played. (Song ID 30. Retail only goes up to 2F).

Proto Final
Street Fighter II (Japan) (st2X.hex Proto) Option Mode.png Street Fighter II (Japan) Option Mode.png

Values for the selected song and sound effect are not yellow.

Game Over Screen

Proto Final
Street Fighter II (Japan) (st2X.hex Proto) gameover.png Street Fighter II (Japan) gameover.png


  • Upon beating the game, the "THANKS FOR PLAYING!!" message appears, but immediately after the music ends the screen fades out and returns to the title screen. Normally, the game waits for player input, then shows the high scores before returning to the title screen.
  • Beating the game on the highest difficulty does not play the special credits sequence.