Sonic the Hedgehog 2 (Nick Arcade prototype)

Sonic the Hedgehog 2 (Nick Arcade prototype)
Build date 1992 Dump status Released Dumped by drx Origin Encased Mega Drive EPROM cartridge (171-5694-01) EPROMs 4x 27c020 (1MB) Board 171-5694-01 Labels Holographic case label, EPROMs labeled Sonic 0, 1, 2 and 3 Ownership Unknown (1992-2006), drx (2006-present) Game Sonic the Hedgehog 2 System Sega Mega Drive Genre Platform Final build Sep 29, 1992 10:33:00 Release date JP Nov 21, 1992 US Nov 24, 1992 EU Nov 24, 1992

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An early prototype of Sonic the Hedgehog 2 for the Sega Mega Drive, also known as the "Nick Arcade" prototype.

Notes

The Cutting Room Floor research

This prototype has a research article on TCRF.

• A similar build was used at SCES 1992 (which was opened to the public near the end of May). The booth was not allowed to be photographed or filmed, but was reported to share the same properties as this prototype. However, the cart used at the exhibition is not the same as this one.
• A similar prototype was also featured on the Nickelodeon show "Nick Arcade", which began filming its second season in June 1992 and began airing in September of that year.
• Contains unreferenced leftover data of Sonic the Hedgehog at 0xE0180, immediately followed by ToeJam & Earl REV00 at 0xE1670 for the remainder of the ROM. Suggests that the EPROMs originally carried the game before being written over.
• It was released by drx on Nov 7, 2006.

Screenshots

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  Title screen

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  Level select

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  Leftover Green Hill Zone from Sonic 1

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  Chemical Plant Zone

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  Hidden Palace Zone

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  Emerald Hill Zone

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  Hill Top Zone

Files

File	Type	Size	SHA-1
Sonic The Hedgehog 2 (Early prototype) (dumped by hidden-palace.org).bin	Mega Drive ROM Image	1 MB	5b51b4d98cb4a7a38157dc4ab9462164dd224bfd

Header

00000100 53 45 47 41 20 4d 45 47 41 20 44 52 49 56 45 20 SEGA MEGA DRIVE 00000110 28 43 29 53 45 47 41 20 31 39 39 31 2e 41 50 52 (C)SEGA 1991.APR 00000120 53 4f 4e 49 43 20 54 48 45 20 20 20 20 20 20 20 SONIC THE 00000130 20 20 20 20 20 20 48 45 44 47 45 48 4f 47 20 32 HEDGEHOG 2 00000140 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 00000150 53 4f 4e 49 43 20 54 48 45 20 20 20 20 20 20 20 SONIC THE 00000160 20 20 20 20 20 20 48 45 44 47 45 48 4f 47 20 32 HEDGEHOG 2 00000170 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 00000180 47 4d 20 30 30 30 30 34 30 34 39 2d 30 31 af c7 GM 00004049-01.. 00000190 4a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 J 000001a0 00 00 00 00 00 07 ff ff 00 ff 00 00 00 ff ff ff ................ 000001b0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 000001c0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 000001d0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 000001e0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 000001f0 4a 55 45 20 20 20 20 20 20 20 20 20 20 20 20 20 JUE

Origin

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  Cartridge case with holographic label

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  Cartridge front

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  Cartridge back

Acknowledgments

Thanks to Execbyte, Kat, Aurochs, LocalH, Orengefox, Erik JS, CheeseBacon, ScarredSun and Cyberdude for helping with the release.