Sonic the Hedgehog 2 (Nick Arcade prototype): Difference between revisions

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{{Prototype
{{Prototype
| titlescreen=S2NA_Title.png
|titlescreen=S2NA_Title.png
| game= Sonic the Hedgehog 2
|builddate=1992
| builddate= Between Dec 19, 1991 and Jun 20, 1992
|status=Released
| system= Sega Mega Drive
|dumper=drx
| status= Released
|origin_type=Encased Mega Drive EPROM cartridge ([[171-5694-01]])
| dumper= drx
|origin_labels=Holographic case label, EPROMs labeled Sonic 0, 1, 2 and 3
}}  
|origin_eproms=4x 27c020 (1MB)
 
|origin_ownership=Unknown (1992-2006),<br>[[drx]] (2006-present)
[[Media:Sonic_The_Hedgehog_2_(Early_prototype).rar|Download {{PAGENAME}}]]
|game=Sonic the Hedgehog 2
 
|system=Sega Mega Drive
The Sonic the Hedgehog 2 Nick Arcade prototype is a prototype of Sonic the Hedgehog 2. It was released by [[drx]] on Nov 7, 2006.
|genre=Platform
 
|final_builddate=Sep 29, 1992 10:33:00
 
|release_date={{RegionDate|JP|Nov 21, 1992}} {{RegionDate|US|Nov 24, 1992}} {{RegionDate|EU|Nov 24, 1992}}
== Screenshots ==
|unreleased=No
}}
{{Download
|file=Sonic_The_Hedgehog_2_(Early_prototype).rar
|title={{PAGENAME}}
}}
An early prototype of Sonic the Hedgehog 2 for the Sega Mega Drive, also known as the "Nick Arcade" prototype.
==Notes==
{{Tcrf link| Proto:Sonic the Hedgehog 2 (Genesis)/Nick Arcade Prototype}}
* 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 remnants of ToeJam & Earl REV00 near the end of the ROM, suggesting that the EPROMs originally carried the game before being written over.
* It was released by [[drx]] on Nov 7, 2006.


==Screenshots==
<gallery mode=nolines heights=168 widths=240>
<gallery mode=nolines heights=168 widths=240>
S2NA_Title.png|Title screen
S2NA_Title.png|Title screen
Line 25: Line 38:
</gallery>
</gallery>


== Files ==
==Files==
 
{{filelist|
{{filelist|


{{filelistentry | 1 |filename= Sonic The Hedgehog 2 (Early prototype) (dumped by hidden-palace.org).bin |type= Megadrive ROM Image |size= 1048576
{{filelistentry | 1 |filename= Sonic The Hedgehog 2 (Early prototype) (dumped by hidden-palace.org).bin |type= Mega Drive ROM Image |size= 1048576
|crc32= 39faaa70|md5= a460bf633579a80eebbc09d6809e1b09|sha1= 5b51b4d98cb4a7a38157dc4ab9462164dd224bfd }}
|crc32= 39faaa70|md5= a460bf633579a80eebbc09d6809e1b09|sha1= 5b51b4d98cb4a7a38157dc4ab9462164dd224bfd }}
}}
}}


== Header ==
==Header==
 
<span class="hex-snippet">00000100  <span class="hover-link link-system-name" data-title="System name" title="Sega Mega Drive">53 45 47 41 20 4d 45 47</span> <span class="hover-link link-system-name" data-title="System name" title="Sega Mega Drive">41 20 44 52 49 56 45 20</span> <span class="hover-link link-system-name" data-title="System name" title="Sega Mega Drive">SEGA MEGA DRIVE </span>
<pre>
00000110  <span class="hover-link link-developer-and-date" data-title="Developer and date" title="Sega, April 1991">28 43 29 53 45 47 41 20</span> <span class="hover-link link-developer-and-date" data-title="Developer and date" title="Sega, April 1991">31 39 39 31 2e 41 50 52</span> <span class="hover-link link-developer-and-date" data-title="Developer and date" title="Sega, April 1991">(C)SEGA 1991.APR</span>
00000100  53 45 47 41 20 4d 45 47  41 20 44 52 49 56 45 20  |SEGA MEGA DRIVE |
00000120  <span class="hover-link link-domestic-game-name" data-title="Domestic game name" title="Sonic The Hedgehog 2">53 4f 4e 49 43 20 54 48</span> <span class="hover-link link-domestic-game-name" data-title="Domestic game name" title="Sonic The Hedgehog 2">45 20 20 20 20 20 20 20</span> <span class="hover-link link-domestic-game-name" data-title="Domestic game name" title="Sonic The Hedgehog 2">SONIC THE      </span>
00000110  28 43 29 53 45 47 41 20  31 39 39 31 2e 41 50 52  |(C)SEGA 1991.APR|
00000130  <span class="hover-link link-domestic-game-name" data-title="Domestic game name" title="Sonic The Hedgehog 2">20 20 20 20 20 20 48 45</span> <span class="hover-link link-domestic-game-name" data-title="Domestic game name" title="Sonic The Hedgehog 2">44 47 45 48 4f 47 20 32</span> <span class="hover-link link-domestic-game-name" data-title="Domestic game name" title="Sonic The Hedgehog 2">     HEDGEHOG 2</span>
00000120  53 4f 4e 49 43 20 54 48  45 20 20 20 20 20 20 20  |SONIC THE      |
00000140  <span class="hover-link link-domestic-game-name" data-title="Domestic game name" title="Sonic The Hedgehog 2">20 20 20 20 20 20 20 20</span> <span class="hover-link link-domestic-game-name" data-title="Domestic game name" title="Sonic The Hedgehog 2">20 20 20 20 20 20 20 20</span> <span class="hover-link link-domestic-game-name" data-title="Domestic game name" title="Sonic The Hedgehog 2">               </span>
00000130  20 20 20 20 20 20 48 45  44 47 45 48 4f 47 20 32  |     HEDGEHOG 2|
00000150  <span class="hover-link link-overseas-game-name" data-title="Overseas game name" title="Sonic The Hedgehog 2">53 4f 4e 49 43 20 54 48</span> <span class="hover-link link-overseas-game-name" data-title="Overseas game name" title="Sonic The Hedgehog 2">45 20 20 20 20 20 20 20</span> <span class="hover-link link-overseas-game-name" data-title="Overseas game name" title="Sonic The Hedgehog 2">SONIC THE      </span>
00000140  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |               |
00000160  <span class="hover-link link-overseas-game-name" data-title="Overseas game name" title="Sonic The Hedgehog 2">20 20 20 20 20 20 48 45</span> <span class="hover-link link-overseas-game-name" data-title="Overseas game name" title="Sonic The Hedgehog 2">44 47 45 48 4f 47 20 32</span> <span class="hover-link link-overseas-game-name" data-title="Overseas game name" title="Sonic The Hedgehog 2">     HEDGEHOG 2</span>
00000150  53 4f 4e 49 43 20 54 48  45 20 20 20 20 20 20 20  |SONIC THE      |
00000170  <span class="hover-link link-overseas-game-name" data-title="Overseas game name" title="Sonic The Hedgehog 2">20 20 20 20 20 20 20 20</span> <span class="hover-link link-overseas-game-name" data-title="Overseas game name" title="Sonic The Hedgehog 2">20 20 20 20 20 20 20 20</span> <span class="hover-link link-overseas-game-name" data-title="Overseas game name" title="Sonic The Hedgehog 2">               </span>
00000160  20 20 20 20 20 20 48 45  44 47 45 48 4f 47 20 32  |     HEDGEHOG 2|
00000180  <span class="hover-link link-serial" data-title="Serial" title="GM 00004049-01">47 4d 20 30 30 30 30 34</span> <span class="hover-link link-serial" data-title="Serial" title="GM 00004049-01">30 34 39 2d 30 31</span> <span class="hover-link link-checksum" data-title="Checksum" title="0xAFC7">af c7</span> <span class="hover-link link-serial" data-title="Serial" title="GM 00004049-01">GM 00004049-01</span><span class="hover-link link-checksum" data-title="Checksum" title="0xAFC7">..</span>
00000170  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |               |
00000190  <span class="hover-link link-io-support" data-title="I/O support" title="Joypad">4a 20 20 20 20 20 20 20</span> <span class="hover-link link-io-support" data-title="I/O support" title="Joypad">20 20 20 20 20 20 20 20</span> <span class="hover-link link-io-support" data-title="I/O support" title="Joypad">J              </span>
00000180  47 4d 20 30 30 30 30 34  30 34 39 2d 30 31 af c7  |GM 00004049-01..|
000001a0  <span class="hover-link link-rom-start-address" data-title="ROM start address" title="0x0">00 00 00 00</span> <span class="hover-link link-rom-end-address" data-title="ROM end address" title="0x7FFFF">00 07 ff ff</span> <span class="hover-link link-ram-start-address" data-title="RAM start address" title="0xFF0000">00 ff 00 00</span> <span class="hover-link link-ram-end-address" data-title="RAM end address" title="0xFFFFFF">00 ff ff ff</span> <span class="hover-link link-rom-start-address" data-title="ROM start address" title="0x0">....</span><span class="hover-link link-rom-end-address" data-title="ROM end address" title="0x7FFFF">....</span><span class="hover-link link-ram-start-address" data-title="RAM start address" title="0xFF0000">....</span><span class="hover-link link-ram-end-address" data-title="RAM end address" title="0xFFFFFF">....</span>
00000190  4a 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |J              |
000001b0  <span class="hover-link link-external-ram-data" data-title="External RAM data" title="No external RAM mounted">20 20 20 20 20 20 20 20</span> <span class="hover-link link-external-ram-data" data-title="External RAM data" title="No external RAM mounted">20 20 20 20</span> <span class="hover-link link-modem-data" data-title="Modem data" title="No modem support">20 20 20 20</span> <span class="hover-link link-external-ram-data" data-title="External RAM data" title="No external RAM mounted">            </span><span class="hover-link link-modem-data" data-title="Modem data" title="No modem support">    </span>
000001a0  00 00 00 00 00 07 ff ff  00 ff 00 00 00 ff ff ff  |................|
000001c0  <span class="hover-link link-modem-data" data-title="Modem data" title="No modem support">20 20 20 20 20 20 20 20</span> <span class="hover-link link-memo" data-title="Memo" title="&nbsp;">20 20 20 20 20 20 20 20</span> <span class="hover-link link-modem-data" data-title="Modem data" title="No modem support">        </span><span class="hover-link link-memo" data-title="Memo" title="&nbsp;">        </span>
000001b0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000001d0  <span class="hover-link link-memo" data-title="Memo" title="&nbsp;">20 20 20 20 20 20 20 20</span> <span class="hover-link link-memo" data-title="Memo" title="&nbsp;">20 20 20 20 20 20 20 20</span> <span class="hover-link link-memo" data-title="Memo" title="&nbsp;">               </span>
000001c0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000001e0  <span class="hover-link link-memo" data-title="Memo" title="&nbsp;">20 20 20 20 20 20 20 20</span> <span class="hover-link link-memo" data-title="Memo" title="&nbsp;">20 20 20 20 20 20 20 20</span> <span class="hover-link link-memo" data-title="Memo" title="&nbsp;">               </span>
000001d0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |               |
000001f0  <span class="hover-link link-regions" data-title="Regions" title="Japan, USA, Europe">4a 55 45 20 20 20 20 20</span> <span class="hover-link link-regions" data-title="Regions" title="Japan, USA, Europe">20 20 20 20 20 20 20 20</span> <span class="hover-link link-regions" data-title="Regions" title="Japan, USA, Europe">JUE            </span>
000001e0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |               |
</span>
000001f0  4a 55 45 20 20 20 20 20  20 20 20 20 20 20 20 20 |JUE            |
</pre>
 
== Origin ==
 
{{Origin
|type=cartridge
|typedetail=Encased Megadrive EPROM cartridge ([[171-5694-01]])
|eproms=4x 27c020 (1MB)
|labels=Holographic case label, EPROMs labeled Sonic 0, 1, 2 and 3
|ownership=Unknown (1992-2006), [[drx]] (2006-present)
}}


==Origin==
<gallery mode=packed>
<gallery mode=packed>
S2b_cart_case.jpg|Cartridge case with holographic label
S2b_cart_case.jpg|Cartridge case with holographic label
Line 69: Line 70:
S2b_cart_back.jpg|Cartridge back
S2b_cart_back.jpg|Cartridge back
</gallery>
</gallery>
==Acknowledgments==
Thanks to Execbyte, Kat, Aurochs, LocalH, Orengefox, Erik JS, CheeseBacon, ScarredSun and Cyberdude for helping with the release.
{{Prototype Footer|{{Navbox prototype|Sonic the Hedgehog 2}}}}

Revision as of 01:59, October 22, 2018

Title Screen
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)
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
Download Sonic the Hedgehog 2 (Nick Arcade prototype) (info)
Error: The download file provided does not exist, please upload it or fix the file name if it's incorrect.

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
  • 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 remnants of ToeJam & Earl REV00 near the end of the ROM, suggesting that the EPROMs originally carried the game before being written over.
  • It was released by drx on Nov 7, 2006.

Screenshots

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

Acknowledgments

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