Super Mario World 2: Yoshi's Island (Oct 2, 1995 prototype)

Super Mario World 2: Yoshi's Island (Oct 2, 1995 prototype)
Build date Jun 26, 1995 05:59:00 Build name ys_rom_0,ys_rom_1,ys_rom_2,ys_rom_3 Dump status Released Released by Anonymous Origin 2018 Nintendo data breach Lot 2018 Nintendo data breach Files other.7z\SFC.7z\SFC\ソースデータ\ヨッシーアイランド\日本_Ver2\sfc\ys_rom_*.bin Game Super Mario World 2: Yoshi's Island System SNES Genre Platform Final build JP Jun 29, 1995 Release date JP Aug 5, 1995 US Oct 4, 1995 EU Oct 6, 1995 AU Dec 1995

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A prototype of Super Mario World 2: Yoshi's Island, dated October 2, 1995, and stored in the form of four 512KB ROM files, probably intended for a prototype EPROM cartridge. A working ROM is produced by combining the four files and fixing the header. Most likely a prototype of the third revision of the Japanese version of the game.

Notes

To fix header:

• 0x7FBD => 0x05
• 5 bytes starting at 0x7FD5 => 0x20 0x15 0x0B 0x00 0x00.

The Cutting Room Floor research

This prototype has a research article on TCRF.