nyuuzyou/wikis huggingface dataset:
Sonic the Hedgehog 2 (Sep 26, 1992 build)

The final build of Sonic The Hedgehog 2, dated Sep 26, 1992. It was released by drx on February 23, 2008.
==Notes==
* The first retail revision of Sonic the Hedgehog 2.
==Screenshots==
==Files==
==Header==
00000100 53 45 47 41 20 47 45 4e 45 53 49 53 20 20 20 20 SEGA GENESIS 
00000110 28 43 29 53 45 47 41 20 31 39 39 32 2e 53 45 50 (C)SEGA 1992.SEP
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 31 30 35 31 2d 30 30 de b8 GM 00001051-00..
00000190 4a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 J 
000001a0 00 00 00 00 00 0f 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
Sonic the Hedgehog 2 (Sep 29, 1992 build)

The final 2 build of Sonic the Hedgehog 2, dated September 29, 1992. It was released by drx on February 23, 2008.
==Notes==
* The second (and most common) revision of Sonic the Hedgehog 2.
==Screenshots==
==Files==
==Header==
00000100 53 45 47 41 20 47 45 4e 45 53 49 53 20 20 20 20 SEGA GENESIS 
00000110 28 43 29 53 45 47 41 20 31 39 39 32 2e 53 45 50 (C)SEGA 1992.SEP
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 31 30 35 31 2d 30 31 d9 51 GM 00001051-01.Q
00000190 4a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 J 
000001a0 00 00 00 00 00 0f 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
Sonic the Hedgehog 2 (Simon Wai prototype)

A later prototype of Sonic the Hedgehog 2 for the Sega Mega Drive.
==Notes==
* Also known as the "Simon Wai" prototype.
* Has been reported to be the build stolen from a Toy Fair in New York. However, earlier reports at the time state that the build of the game originated from a magazine. Certain magazines have showcased similar builds at least one month before the final release (given the corrupt stage layout in Casino Night Zone).
* The original ROM was leaked onto BBS before the final release by an unknown group.
* This ROM originated from a pirate cart that was sold in Hong Kong. The pirate cartridge was dumped with a Super Magic Drive and was possibly altered from the original ROM and released on Chinese ROM sites around 1997.
* The ROM was rediscovered by Simon Wai, and identified and distributed as a "beta ROM" of Sonic the Hedgehog 2.
* Certain bytes within the ROM have been overwritten with data from another much earlier build of Sonic the Hedgehog 2. There are also some bytes that have been overwritten with an art compression output.
* Given that the earliest known prototype was built sometime before May 30th, 1992, and that the latest known build to follow this prototype was created on Aug 21, 1992, it's most likely given the completeness of this prototype that this version was built sometime between late June and early August.
Sonic the Hedgehog 3 (Feb 25, 2009 prototype)

A prototype of Sonic the Hedgehog 3 for the Xbox 360.
==Notes==
*Predates the final build by over a month.
*Original filename: Sonic the Hedgehog 3 (Feb 26, 2009) [584109A3].rar
*Released on the Xbox 360 PartnerNET service.
==Acknowledgments==
A huge thanks to Obscure Gamers and all who have contributed over the years to these Tera Releases!
==See also==
*Obscure Gamers
*The Cutting Room Floor (TCRF)
*Internet Archive (IA)
Sonic the Hedgehog 3 (Final build)

A final build of Sonic 3 on an EPROM cartridge. It contains a simple logo on the cart simply titled "SONIC 3".
==Notes==
* Identical to US final, but it can't save games due to not having a save memory chip on the PCB.
==Origin==
File:Sonic3Betacart front.jpg|alt=Front with cover
File:Sonic3Beta front.jpg|Front without cover
File:Sonic3Beta Back.jpg|Back without cover
Sonic the Hedgehog 3 (Nov 20, 1993 build)

An altered final ROM of Sonic the Hedgehog 3. 
== Notes ==
* Same as US final, but with no header memo.
== Screenshots ==
File:SONIC3000.png
File:SONIC3001.png
File:SONIC3002.png
File:SONIC3003.png
== Header ==
00000100 53 45 47 41 20 47 45 4e 45 53 49 53 20 20 20 20 SEGA GENESIS 
00000110 28 43 29 53 45 47 41 20 31 39 39 33 2e 4e 4f 56 (C)SEGA 1993.NOV
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 33 HEDGEHOG 3
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 33 HEDGEHOG 3
00000170 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
00000180 47 4d 20 4d 4b 2d 31 30 37 39 20 2d 30 30 a8 f2 GM MK-1079 -00..
00000190 4a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 J 
000001a0 00 00 00 00 00 1f ff ff 00 ff 00 00 00 ff ff ff ................
000001b0 52 41 f8 20 00 20 00 01 00 20 03 ff 20 20 20 20 RA. . ... .. 
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 55 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 U 
== Files ==
Sonic the Hedgehog 4: Episode II (Apr 21, 2012 prototype - Beta 8)

A late prototype of Sonic the Hedgehog 4: Episode II, named as "Beta 8".
==Notes==
* Predates the final build by 12 days.
* It was leaked accidentally on Steam at midnight EST on April 21, 2012.
* Sylvania Castle Zone textures failed to load.
* The game crashes upon switching windows if run in full-screen mode for some people.
* Pressing 0 on keyboard (or LT on an Xbox 360 controller) increases the number of rings in stock by 99, which can be used to easily increase lives.
* Lightning effects are missing when the game is played in the highest resolutions.
Sonic the Hedgehog 4: Episode I (Feb 8, 2010 prototype)

A prototype of Sonic the Hedgehog 4: Episode I for the Xbox 360.
==Notes==
* Predates the final build by 7 months.
* Between this and the Feb 6 build, only the .xex and one of the files for Stage 2 (Casino Street) was changed.
==See also==
* The Cutting Room Floor (TCRF)
* Internet Archive (IA)
Sonic the Hedgehog 4: Episode I (Feb 9, 2010 PartnerNet prototype)

A prototype of Sonic the Hedgehog 4: Episode 1 for the Microsoft Xbox 360.
==Notes==
* This prototype was released on the Xbox 360 PartnerNet service on February 9, 2010, but very poor reception of the prototype led to the entire service as a whole being shut down. It contains many differences from the final game and includes different level designs and music changes. The different level designs are featured in the mobile version.
Sonic the Hedgehog 4: Episode I (Feb 9, 2010 Sony QA Network prototype)

A prototype of Sonic the Hedgehog 4: Episode I for the PlayStation 3, released through Sony QA Network.
==Notes==
* As of now the build hasn't dumped, but here's the differences from the Sonic Retro's page about it:
*UPDATE from May 24, 2024: 4 days ago, codebound uploaded to Internet Archive a megalot of PlayStation 3 prototypes, including some of PSN, and also, Sonic the Hedgehog 4 - Episode I.
===General Differences===
* Level select screen uses pictures of levels instead of a landscape.
* Levels use the loading screen briefly, instead of animating the title card screen.
* No way to progress to the next act without using the Level Select screen.
* In this beta build, instead of Sonic popping out of the logo for the game, the entire logo flashed, along with Sonic, then he wagged his finger.
===Music Differences===
* Casino Street Zone Act 2 has a completely different song.
* There is no sound effect played when locking onto a homing attack target.
===Level Differences===
* Casino Street Zone's Act 2 contains the 100,000 Point Challenge, a short score attack level in a pinball-style area, Removed in the console version Act 2 has a different music track which was appropriate for the score attack level. Replaced in the final version.
* Lost Labyrinth Zone's Act 2 contains the controversial Mine Cart level where Sonic remained in the cart throughout the level, which controlled poorly. It is controlled using the PlayStation 3's Sixaxis motion control function. The Mine Cart section is reduced greatly and plays automatically in the final version.
* Unlike the final build, the Special Stage is played by using Sixaxis motion control controls. In the final build, Sixaxis motion control is merely optional as the default controls use the analog stick instead.
==Acknowledgments==
A huge thank you to Xil_Dreadnought for the generous donation, and to Codebound for releasing this prototype!
== See also ==
*Original upload on archive.org
Sonic the Hedgehog 4: Episode I (Feb 9, 2010 WiiWare prototype)

A prototype of Sonic the Hedgehog 4: Episode 1 for the Nintendo Wii.
==Notes==
*The dirname of the scene release is "Sonic.The.Hedgehog.4.Episode.I.WiiWare.JPN.Wii-PLAY-SKiLL" and the NFO name is "ps-wsnj".
*This prototype, judging by the lack of anything in the release name/NFO suggesting that this was an abnormal scene release, was accidentally released on the Japanese version of the WiiWare service on the release date. It contains many differences from the final game and includes different level designs and music changes. The different level designs are featured in the mobile version.
*The .mid and .SF2 files for this prototype haven't been dumped.
*This prototype has the 10000 Points Challenge and the "Gyroscope Minecart" from the mobile version.
Sonic the Hedgehog CD (Aug 19, 1993 prerelease)

A prerelease build of Sonic the Hedgehog CD for the Sega CD.
==Notes==
* This build is almost identical to the final PAL release except the IP loader is different and the raw Redbook audio track data is authored slightly differently.
==Screenshots==
SONIC_CD___.2019-09-02 16.16.20.png|Title screen.
SONIC_CD___.2019-09-02 16.16.46.png|Opening video.
SONIC_CD___.2019-09-02 16.18.39.png|Palmtree Panic Zone Act 1 Present.
SONIC_CD___.2019-09-02 16.18.56.png|Save RAM screen.
SONIC_CD___.2019-09-02 16.19.23.png|Special Stage 1.
SONIC_CD___.2019-09-02 16.19.41.png|Tidal Tempest Zone Act 3 Bad Future.
SONIC_CD___.2019-09-02 16.20.02.png|Special Stage 2.
SONIC_CD___.2019-09-02 16.20.13.png|Metallic Madness Zone.
==Files==
File Archive Contents
Disc Contents
== Disc contents ==
==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 33 2e 41 55 47 (C)SEGA 1993.AUG
00000120 53 4f 4e 49 43 20 54 48 45 20 48 45 44 47 45 48 SONIC THE HEDGEH
00000130 4f 47 2d 43 44 20 20 20 20 20 20 20 20 20 20 20 OG-CD 
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 48 45 44 47 45 48 SONIC THE HEDGEH
00000160 4f 47 2d 43 44 20 20 20 20 20 20 20 20 20 20 20 OG-CD 
00000170 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
00000180 47 4d 20 4d 4b 2d 34 34 30 37 2d 35 30 2d 30 30 GM MK-4407-50-00
00000190 4a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 J 
000001a0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
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 45 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 E 
==Origin==
Sonic CD 1.11 Front.png|Disc front.
Sonic CD 1.11 Back.png|Disc back.
== See also ==
* The Cutting Room Floor
Sonic the Hedgehog CD (Aug 6, 1993 16:54 prototype)

A prototype build of Sonic the Hedgehog CD for the Sega CD.
==Notes==
* This build is similar to the final Japanese build except the following files have changes made to them (what these changes are is currently unknown):
** ENDING.MMD
** OPEN_M.MMD
** SPMM_.MMD
** SPSS_.BIN
** TITLEM.MMD
* The IP data has been altered in comparison to the original Japanese release.
==Screenshots==
SONIC_CD___.2019-09-02 16.30.58.png|Title screen.
SONIC_CD___.2019-09-02 16.31.45.png|Opening movie 1.
SONIC_CD___.2019-09-02 16.32.13.png|Opening movie 2.
SONIC_CD___.2019-09-02 16.32.54.png|Opening movie 3.
SONIC_CD___.2019-09-02 16.33.42.png|Palmtree Panic Zone Act 1 Present 1.
SONIC_CD___.2019-09-02 16.33.59.png|Palmtree Panic Zone Act 1 Present 2.
SONIC_CD___.2019-09-02 16.34.44.png|Special Stage 1.
SONIC_CD___.2019-09-02 16.34.49.png|Special Stage 2.
SONIC_CD___.2019-09-02 16.35.35.png|Tidal Tempest Zone Act 3 Bad Future 1.
SONIC_CD___.2019-09-02 16.36.09.png|Tidal Tempest Zone Act 3 Bad Future 2.
SONIC_CD___.2019-09-02 16.36.47.png|Special Stage 3.
SONIC_CD___.2019-09-02 16.36.59.png|Special Stage 4.
SONIC_CD___.2019-09-02 16.37.46.png|Metallic Madness Zone 1.
SONIC_CD___.2019-09-02 16.37.58.png|Metallic Madness Zone 2.
==Files==
File Archive Contents
Disc Contents
==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 33 2e 41 55 47 (C)SEGA 1993.AUG
00000120 53 4f 4e 49 43 20 54 48 45 20 48 45 44 47 45 48 SONIC THE HEDGEH
00000130 4f 47 2d 43 44 20 20 20 20 20 20 20 20 20 20 20 OG-CD 
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 48 45 44 47 45 48 SONIC THE HEDGEH
00000160 4f 47 2d 43 44 20 20 20 20 20 20 20 20 20 20 20 OG-CD 
00000170 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
00000180 47 4d 20 47 2d 36 30 32 31 20 20 2d 30 30 20 20 GM G-6021 -00 
00000190 4a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 J 
000001a0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
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 45 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 E 
==Origin==
Sonic CD 1.09 Front.png|Disc front.
Sonic CD 1.09 Back.png|Disc back.
== See also ==
* The Cutting Room Floor
Sonic the Hedgehog CD (May 10, 1993 prototype)

A prototype of Sonic the Hedgehog CD for the Sega CD.
==Notes==
* This is the only existing dump of this build of Sonic the Hedgehog CD.
* The original disc was sold on eBay by someone in Brazil in early 2000. The owner of the disc gave user User::profund darkness a iso/mp3 dump of the disc, who then released the dump onto the internet along with dumps of other Sonic CD prototypes. The original disc has since been sold and is now lost.
* The title screen is completely different from the final version, and uses 320×224 resolution rather than the final's 256×224. It also credits Keiko Utoku, the singer of "Sonic - You Can Do Anything":
CDSonic510TitleScreen.png|510
Sonic cd 8-1-93 title.png|712+
* The Special Stage is not yet playable, but a demo can be seen on the title screen. The text "The programmer has a nap. Hold out! Programmer!" flashes repeatedly, which indicates the programmer's laziness.
* The Special Stage music is extended, lasting four-and-a-half minutes:
* The jump sound is more low-pitched than the final version.
* Most of the music is the same as the Japanese/European soundtrack, but without fade-outs.
* The game has a SEGA logo with the classic "SEEEGAAA!" sound. It was removed from the 712 prototype and up due to the BIOS including it.
==Screenshots==
==Files==
Sonic the Hedgehog CD (Nov 20, 2011 prototype)

A debug prototype of Sonic the Hedgehog CD for PlayStation 3.
==Notes==
* Compiled 10 days after the final build.
* Apparently, this build was leaked.
* Pressing the X + L2 button, the game will boot the debug screen
* Uses the US soundtrack.
* The original origin source for this prototype was a Blu-ray disc.
==Screenshots==
Sonic the Hedgehog CD (Oct 13, 1993 prerelease)

A prerelease build of Sonic the Hedgehog CD for the Sega CD.
==Notes==
* This build is almost identical to the final US release except the raw Redbook audio track data is authored slightly differently.
==Screenshots==
SONIC_CD___.2019-09-02 16.21.47.png|Title screen.
SONIC_CD___.2019-09-02 16.22.46.png|Opening movie.
SONIC_CD___.2019-09-02 16.24.46.png|Palmtree Panic Zone Act 1 Present 1.
SONIC_CD___.2019-09-02 16.24.58.png|Palmtree Panic Zone Act 1 Present 2.
SONIC_CD___.2019-09-02 16.26.02.png|Special Stage 1.
SONIC_CD___.2019-09-02 16.26.56.png|Tidal Tempest Zone Act 3 Bad Future 1.
SONIC_CD___.2019-09-02 16.27.13.png|Tidal Tempest Zone Act 3 Bad Future 2.
SONIC_CD___.2019-09-02 16.28.13.png|Specail Stage 2.
SONIC_CD___.2019-09-02 16.28.28.png|Special Stage 3.
==Files==
File Archive Contents
Disc Contents
==Header==
00000100 53 45 47 41 20 47 45 4e 45 53 49 53 20 20 20 20 SEGA GENESIS 
00000110 28 43 29 53 45 47 41 20 31 39 39 33 2e 4f 43 54 (C)SEGA 1993.OCT
00000120 53 4f 4e 49 43 20 54 48 45 20 48 45 44 47 45 48 SONIC THE HEDGEH
00000130 4f 47 2d 43 44 20 20 20 20 20 20 20 20 20 20 20 OG-CD 
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 48 45 44 47 45 48 SONIC THE HEDGEH
00000160 4f 47 2d 43 44 20 20 20 20 20 20 20 20 20 20 20 OG-CD 
00000170 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
00000180 47 4d 20 4d 4b 2d 34 34 30 37 20 2d 30 30 20 20 GM MK-4407 -00 
00000190 4a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 J 
000001a0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
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 55 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 U 
==Origin==
Sonic CD 1.15 Front.png|Disc front.
Sonic CD 1.15 Back.png|Disc back.
== See also ==
* The Cutting Room Floor
Sonic the Hedgehog CD (Oct 31, 1996 preview)

A late sample of Sonic the Hedgehog CD for PC.
==Notes==
* Compiled after the PAL release.
* This build appears to be near final, if not final.
==See also==
* BetaArchive release thread (download link no longer available)
* http://www.sega.com/segapc/downloads/games/soniccd.html (Available through Wayback Machine, 1996-12-20 - 03:45:47)
Sonic the Hedgehog CD (Sep 11, 1995 prototype)

A prototype of Sonic the Hedgehog CD for Windows, this version is named as "Pentium® Processor Edition" or "DINO OEM".
==Notes==
* It seems to be the final version.
* This prototype was compiled on September 7, four days after.
==Screenshots==
==Origin==
File:SonicCD0992.png
==See also==
* Original release thread
* Cutting Room Floor (TCRF)
* Internet Archive (IA)
Sonic the Hedgehog CD (Sep 18, 1995 prototype)

A prototype of Sonic the Hedgehog CD for Windows, this version is named as "Pentium® Processor Edition" or "DINO OEM".
==Notes==
* It seems to be the final version.
* This prototype was compiled on September 7, four days after and alongside to Version 0.992.
==Screenshots==
==Origin==
SonicCDB994.png
==See also==
* Original release thread
* Cutting Room Floor (TCRF)
* Internet Archive (IA)
Sonic the Hedgehog CD (Sep 20, 1993 prototype)

This prototype is similar to the final US version, but with the Japanese soundtrack. Originally released as a lossy ISO/MP3 image, it was later redumped as a BIN/CUE by Sutekh and released by drx on June 8, 2006.
==Notes==
==Files==
==Header==
00000100 53 45 47 41 20 47 45 4e 45 53 49 53 20 20 20 20 SEGA GENESIS 
00000110 28 43 29 53 45 47 41 20 31 39 39 33 2e 53 45 50 (C)SEGA 1993.SEP
00000120 53 4f 4e 49 43 20 54 48 45 20 48 45 44 47 45 48 SONIC THE HEDGEH
00000130 4f 47 2d 43 44 20 20 20 20 20 20 20 20 20 20 20 OG-CD 
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 48 45 44 47 45 48 SONIC THE HEDGEH
00000160 4f 47 2d 43 44 20 20 20 20 20 20 20 20 20 20 20 OG-CD 
00000170 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
00000180 47 4d 20 4d 4b 2d 34 34 30 37 2d 30 30 20 20 20 GM MK-4407-00 
00000190 4a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 J 
000001a0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
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 55 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 U 
==Disc contents==
==Origin==
Sonic the Hedgehog Extreme (May 27, 2003 prototype)

A prototype build for Sonic the Hedgehog Extreme, a proposed skateboarding game on the original Xbox, dated May 27, 2003. It was released by Borman on July 24, 2016.
==Notes==
* This release shares assets with Tech Deck: Bare Knuckle Grind & Rocket Power: Zero Gravity Zone.
==Screenshots==
Sonic Extreme XBOX Menu 1.png|Mode select.
Sonic Extreme XBOX Menu 2.png|Character select.
Sonic Extreme XBOX Loading.png|Loading screen.
Sonic Extreme XBOX Pause.png|Pause menu.
Sonic Extreme XBOX Game 1.png|Mission objective.
Sonic Extreme XBOX Game 2.png|Sonic gameplay.
Sonic Extreme XBOX Game 3.png|Mission objective.
Sonic Extreme XBOX Game 4.png|Shadow gameplay.
Sonic Extreme XBOX Game 5.png|Race mode.
Sonic Extreme XBOX Debug Cam 1.png|Debug camera.
Sonic Extreme XBOX Debug Cam 2.png|Map overview.
Sonic Extreme XBOX Debug Cam 3.png|Map overview.
==Videos==
<youtube width="320" height="240">6dB4Tii-GE8</youtube>
<youtube width="320" height="240">HhrqSGBGNic</youtube>
==Origin==
VisionScape Debug Kits.jpg
==Acknowledgments==
* Screenshots taken from Borman's announcement on Sonic Retro.
==See also==
* July 24, 2016: Release thread on ASSEMblergames.
Sonic the Hedgehog Pocket Adventure (Demo)

A demo version of Sonic Pocket Adventure for the Neo Geo Pocket Color.
==Background==
Sonic the Hedgehog Pocket Adventure: Trial (体験版) is an abridged version of the Neo Geo Pocket Color game Sonic Pocket Adventure. It is a playable one-Zone demo that was sent to stores to entice customers into buying the full version. This version barely differs from the final version of the game, with the exception being some Japanese language, and two teaser trailers that are not in the final version.
Before the Sega logo, there is some scrolling Japanese text that translates to "Finally... A supersonic action game... on the Neo Geo Pocket". After the Sega logo, there is a cutscene that introduces the main characters of the game: Sonic, Knuckles, and Tails. Lastly, a silhouette of Dr. Eggman appears, followed by more text promoting the game.
The first dump of the game had problems playing sound during the intro video. On November 6, 2009, a new dump of this ROM was released by NGP PROJECT. This dump appears to fix the sound problems in the opening cutscene. Comparing the two dumps reveals minor corruption in various locations of the earlier ROM.
==Notes==
* Contains a new intro that's exclusive to this demo, but is otherwise the final game.
==Screenshots==
File:SPADSonic.png|Sonic
File:SPADKnuckles.png|Knuckles
File:SPADTails_2.png|Tails
File:SPADTails.png|Tails in a plane!
File:SPADRobotnik.png|And Dr Eggman
==Videos==
<youtube width=320 height=240>fWTGrp9hw9c</youtube>
==Origin==
File:SonicPocketAdventureTrialCartridge.jpg|Cartridge