nyuuzyou/wikis huggingface dataset:
Sonic Mega Collection Plus (Aug 18, 2004 prototype)

A late prototype of Sonic Mega Collection Plus for the Sony PlayStation 2.
==Notes==
* Near-final to NTSC-U and NTSC-J which both predates the final build by 10 days, for PAL predates by 2 months and 33 days.
* Miscellaneous Notes:
** Game is emulatable (in PCSX2): Yes (as of January 27, 2024).
** Game contains dongle protection: No.
==Screenshots==
File:Gsdx 20240127195742.png|thumb|Main Menu screen.
File:Gsdx 20240127195819.png|thumb|Manual screen.
File:Gsdx 20240127195831.png|thumb|Extras screen.
==Origin==
276903ebe00650d767382445a70d6049.png|Disc front.
==Videos==
<youtube width="320" height="240">AnpejZUH-Rw</youtube>
==Acknowledgments==
* Special thanks to hogsy, hwd405, Spaceman, TheNameless0ne, AquaSeaWing, GHzGangster, FrostWolf, PikminGuts92, SpecFroce, AshBob5000, Dezent, and bonus thanks to RacingFreak for editing scans to be clearer.
==See also==
Original release thread on ObscureGamers.com
Sonic Month 2019

If you missed any of the streams from this event, you can check them out on our YouTube channel or by following the link to the playlist here.
Together with the fine folks of TCRF, we would like to announce Sonic Month 2019!
We were able to obtain several new prototypes for Sega Mega Drive, Sega CD and Game Gear/Master System Sonic titles. These come from multiple sources, but we decided to have some fun and released them all in one month.
They are going to fill some gaps in our collection of Sonic prototypes, as well as answer some very long-standing questions. And who knows, maybe ask more questions of their own :)
October 25
A small Sega CD surprise for TCRF’s birthday!
Sega Multimedia Studio: Sega CD Demo (May 29, 1992 prototype)
Every day listed below, at 2PM Pacific time (10PM GMT), we will have a live stream of one or more prototypes. After each stream, we will release the ROMs.
October 26 
Sonic the Hedgehog CD (Dec 4, 1992 prototype)
Sonic the Hedgehog CD (May 12, 1993 prototype)
Sonic the Hedgehog CD (Jun 21, 1993 prototype)
Sonic the Hedgehog CD (Jul 12, 1993 06:37 prototype)
Sonic the Hedgehog CD (Aug 1, 1993 prototype)
Sonic the Hedgehog CD (Aug 6, 1993 16:54 prototype)
Sonic the Hedgehog CD (Aug 19, 1993 prerelease)
Sonic the Hedgehog CD (Oct 13, 1993 prerelease)
November 2 
	
Sonic Chaos (May 17, 1993 prototype)
Sonic Chaos (Jun 30, 1993 prototype)
Sonic Chaos (Jul 13, 1993 prototype)
November 9 
Sonic the Hedgehog 2 (Sep 14, 1992 prototype)
November 10 
Sonic the Hedgehog 2 (Aug 21, 1992 prototype)
November 16 
Sonic the Hedgehog 3 (Nov 3, 1993 prototype)
Come join #sonic-protos on our Discord to discuss these!
Thank you so much to the amazing people who have donated toward this effort so far! Thank you to AeonicB, ashthedragon, Benjamin Branch, BMF54123, Cabel Sasser, Chris_Chocobo, Cody Mingus, Cooljerk, Daniel Walton, Dust hill resident, ehw, Frank Cifaldi, Franz, Fred, Friend of Sonic, Gerbilsoft, GoldS, Heran Bago, Hez, John Crane, Jonna Renee, Kat, n00neimp0rtant, Neo Geo MVS, PixoPoxo, rahanakero, RAMPKORV, Riatoju, Rick, Sara Leen, Sazpaimon, Scarred Sun, Sephys00, shoemanbundy, sonicblur, SoNick, SSUK, TailChao, Tarheeltim, Techokami, Xkeeper and. ZeaLitY for all your help and donations. ❤️
PS. Some of you might know a bit more details than posted here. Please avoid spoiling them! Let everyone have some spoiler-free fun!
__NOTOC__
Sonic N (Sep 16, 2003 prototype)

A late prototype of Sonic N for the Nokia N-Gage, which predates the final version.
==Notes==
* No differences, but the player can change the size of bordes in the intro by pressing # key. Normally they can only do this during gameplay. 
* Compiled after the final revision.
==Screenshots==
==See also==
* Internet Archive (IA)
Sonic R (Aug 19, 1999 Network Patch prototype)

A Network Patch Update prototype of Sonic R for PC (even through this isn't a post-release proto, however).
==Notes==
*This is what appears to be a prototype of the network patch for Sonic R. Both the prototype (sonicr.exe) and the self-extracting installer it was stored in (SR_NET.EXE) are included.
*It has a few debugging features, such as printing [hr_temp=DP_OK] at the top-left of the screen and producing a 'sonicr.log' file in the install directory. 
*It's also missing the text on the main menu screen. Otherwise it plays about the same, but more investigation still needs to be done.
*This was found on a copy of Sonic R bundled with the Sonic 3D Blast/Sonic R Twin Pack published by Activision Value. 
*The file was located under the 'NETWORK' directory on the root of the CD. It had a last-modified date of August 19, 1999 09:20:44. The file inside has a last-modified date of February 2, 1999 15:23:00.
Sonic R (Sep 10, 1997 prototype)

A prototype of Sonic R for the Sega Saturn.
==Notes==
* Only contains three playable levels - Island, Factory, and City. Factory is the most incomplete.
* Rudimentary menu and character selection screens.
* There are 9 gold coins to colletct instead of 5 like the final game,also some doors requiere more than 50 rings to be opened, the max is 80 rings.
* No collision detection between characters is implemented.
* The replay option after the race is broken.
==Screenshots==
File:SAT 0002 Sonic R Title.png
File:SAT 0002 Sonic R 0.png
File:SAT 0002 Sonic R 1.png
File:SAT 0002 Sonic R 2.png
File:SAT 0002 Sonic R 3.png
File:Sonic R,5.png
File:Sonic R,6.png
File:Sonic R,1.png
File:Sonic R,2.png
File:Sonic R,3.png
File:Sonic R,4.png
==Files==
==Disc contents==
Sonic R Taikenban (Oct 29, 1997 build)

A taikenban disc of Sonic R for SEGA Saturn, originally bundled as part of Otanoshimi 3 Shiro! Disc, alongside two other taikenban discs for the games Shining Force III and Machi.
==Notes==
* Metal Sonic can be unlocked.
* Postdates the PAL & NSTC-U final build, but for NSTC-J is predating by 7 days.
* Any CD Audio unused in the demo is removed/absent.
* The filesize suggests the demo is heavily gutted in content.
* Replay mode seems broken (The normal attract mode autodemo works).
==Origin==
File:Oyasumi1.jpg|Cover of Otanoshimi 3 Shiro! Disc, Sonic R is the first one.
File:Oyasumi2.jpg|CD-R of the said game.
==Videos==
<youtube width="320" height="224">CA1wLj5K2k8</youtube>
==See also==
* Sonic Retro article
* Redump.org entry
Sonic Riders (Dec 8, 2005 prototype)

A prototype trial build of Sonic Riders for the Sony PlayStation 2.
==Notes==
* This build originally was a half from a Debug prototype dated back from October 7, 2005.
* Seems to have been built about a few weeks before the final build.
* This build was shown off at the San Diego Comic-Con International in 2006.
==Origin==
File:SR SDCC CASE 1.jpg|thumb|Cover scan (front).
File:SR SDCC CASE 2.jpg|thumb|Cover scan (back).
File:SR SDCC CASE 3.jpg|thumb|Disc scan.
Sonic Rivals 2 (Oct 22, 2007 prototype)

A late prototype of Sonic Rivals 2 for the Sony PlayStation Portable.
==Notes==
*Postdates the final build, save for executable file.
*Original filename: Sonic Rivals 2 (Oct 22, 2007 v0.03).CSO
==Origin==
SR2 Pre-Production UMD.png|Orengefox UMD
SR20.3.png|ObscureGamers UMD
Sonic Rivals 2 (Oct 8, 2007 prototype)

A late prototype of Sonic Rivals 2 for Sony PlayStation Portable.
==Notes==
*Just about 11 days for both final builds.
*Every byte change can be seen by comparing final build and this build.
==Origin==
SR2 Test Sample UMD.png|Original UMD
Sonic Rivals 2 PSP TESS 019960 Test Sample ULUS-10323 Sega 1.00.jpg|UMD Scan
Sonic Rush (E3 2005 kiosk demo)

A one-level prototype of Sonic Rush for the DS, apparently from E3 2005. It was dumped by Lightning released by drx on January 07, 2007.
==Notes==
==Screenshots==
NDS_0001_Sonic_Rush_0.png|That look Up in this image is not in the same in the final.
NDS_0001_Sonic_Rush_1.png|Title Card
==Files==
==Origin==
Srush e3 00.jpg |Cartridge front
Srush e3 02.jpg |Cartridge back
==Acknowledgments==
Thanks to Lightning and Techokami for helping with this release.
Sonic Shuffle (Jan 11, 2001 prototype)

A late PAL localization prototype of Sonic Shuffle for the Sega Dreamcast.
==Notes==
* A debugger can be activated by holding down Y while the game is loading.
* A performance bar displays at the bottom of the screen.
==Origin==
20190212_135133.jpg|GD-R front.
==See also==
Read the original release post on ASSEMBlerGames.com here. (Archive)
Sonic Spinball (Apr 12, 1994 prototype)

The prototype build 0412 of Sonic Spinball, dated Apr 12, 1994, 07.26. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0412_-_Apr_12,_1994,_07.26)_A.png 
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (Apr 13, 1994 prototype)

The prototype build 0413 of Sonic Spinball, dated Apr 13, 1994, 02.54. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0413_-_Apr_13,_1994,_02.54)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (Apr 15, 1994 prototype)

The prototype build 0415 of Sonic Spinball, dated Apr 15, 1994, 17.33. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0415_-_Apr_15,_1994,_17.33)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (Apr 21, 1994 prototype)

The prototype build 0421 of Sonic Spinball, dated Apr 21, 1994, 05.30. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0421_-_Apr_21,_1994,_05.30)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (Apr 27, 1994 prototype)

The prototype build 0427 of Sonic Spinball, dated Apr 27, 1994, 04.51. It was released by drx on February 23, 2008.
==Screenshots==
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (Apr 29, 1994 prototype)

The prototype build 0429 of Sonic Spinball, dated Apr 29, 1994, 06.01. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0429_-_Apr_29,_1994,_06.01)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (Apr 29, 1994 prototype B)

The prototype build 0430 Sonic Spinball, dated Apr 29, 1994, 21.48. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0430_-_Apr_29,_1994,_21.48)_A.png 
}
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (Apr 5, 1994 prototype)

The prototype build 0405 of Sonic Spinball, dated Apr 05, 1994, 18.07. It was released by drx on February 23, 2008.
==Screenshots==
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 00 00 00 00 TMR SEGA........
Sonic Spinball (Aug 1993 prototype)

A late prototype of Sonic Spinball for the Sega Mega Drive.
==Notes==
* Released sometime in 1993 by PREMIERE over BBS before the game was released. The ROM contains data for scene intro by the group.
* Was the subject of controversy due to legal litigation surrounding the distribution of the prototype (along with Jurassic Park) in "Sega Enterprises Ltd. v. Maphia".
* The original release archive is currently lost, but the ROM continued to be distributed by the Chinese through ROM sites and bootleg CDs, cartridges, and Super Magic Drive floppies. The original archive was renamed "MD10003.zip" to reflect that this was the third 10Mbit ROM released. The original ROM file that was discovered was time-stamped Oct 8th, 1999.
* The ROM was rediscovered in August 2000 by User:Elliot, which allowed the ROM to be properly identified and archived.
Sonic Spinball (Mar 10, 1994 prototype)

The prototype build 031094 Sonic Spinball, dated Mar 10, 1994, 17.41. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_031094_-_Mar_10,_1994,_17.41)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 00 00 00 00 TMR SEGA........
Sonic Spinball (Mar 11, 1994 prototype)

The prototype build 031194 of Sonic Spinball, dated Mar 11, 1994, 12.09. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_031194_-_Mar_11,_1994,_12.09)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 00 00 00 00 TMR SEGA........
Sonic Spinball (Mar 21, 1994 prototype)

The prototype build 032194 of Sonic Spinball, dated Mar 21, 1994, 07.12. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_032194_-_Mar_21,_1994,_07.12)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 00 00 00 00 TMR SEGA........
Sonic Spinball (Mar 28, 1994 prototype)

The prototype build 0328 of Sonic Spinball, dated Mar 28, 1994, 06.54. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0328_-_Mar_28,_1994,_06.54)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 00 00 00 00 TMR SEGA........
Sonic Spinball (Mar 29, 1994 prototype)

The prototype build 0329 of Sonic Spinball, dated Mar 29, 1994, 07.35. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0329_-_Mar_29,_1994,_07.35)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 00 00 00 00 TMR SEGA........
Sonic Spinball (Mar 30, 1994 prototype)

The prototype build 0330 of Sonic Spinball, dated Mar 30, 1994, 06.54. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0330_-_Mar_30,_1994,_06.54)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 00 00 00 00 TMR SEGA........
Sonic Spinball (Mar 7, 1994 prototype)

The prototype build 0307 Sonic Spinball, dated Mar 07, 1994, 05.24. It was released by drx on February 23, 2008.
==Notes==
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 00 00 00 00 TMR SEGA........
Sonic Spinball (May 25, 1994 prototype)

The prototype build 0525 of Sonic Spinball, dated May 25, 1994, 13.24. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0525_-_May_25,_1994,_13.24)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (May 3, 1994 prototype)

The prototype build 503B of Sonic Spinball, dated May 03, 1994, 19.27. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_503B_-_May_03,_1994,_19.27)_A.png 
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (May 30, 1994 prototype)

The prototype build 0530 of Sonic Spinball, dated May 30, 1994, 23.25. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0530_-_May_30,_1994,_23.25)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (May 31, 1994 prototype)

The prototype build 0531 of Sonic Spinball, dated May 31, 1994, 12.09. It was released by drx on February 23, 2008.
==Notes==
==Screenshots==
Sonic_Spinball-(Prototype_0531_-_May_31,_1994,_12.09)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (May 5, 1994 prototype)

The prototype build 0505 of Sonic Spinball, dated May 05, 1994, 04.47. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0505_-_May_05,_1994,_04.47)_A.png 
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (May 6, 1994 prototype)

The prototype build 0506 of Sonic Spinball, dated May 06, 1994, 13.04. It was released by drx on February 23, 2008.
==Screenshots==
Sonic_Spinball-(Prototype_0506_-_May_06,_1994,_13.04)_A.png
==Files==
==Header==
00007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 26 25 00 70 TMR SEGA....&%.p
Sonic Spinball (Oct 19, 1993 prototype)

An incomplete collection of EPROMs that form a prototype of Sonic Spinball for the Sega Mega Drive.
==Notes==
* "19-10" is written on some of the EPROMs, hinting at a possible date of October 19, 1993 (making this a possible late PAL prototype).
* Only two of the EPROM pieces can be interweaved to create a ROM chunk.
==Files==
Sonic Spinball (Sep 22, 1993 build)

An altered final build of Sonic Spinball for the Sega Mega Drive. 
== Notes ==
* Same as US final, but with "SegaChannel" XORed at the end (see below).
== Screenshots ==
File:SPINBALL000.png
File:SPINBALL001.png
File:SPINBALL002.png
== ROM 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 53 45 50 (C)SEGA 1993.SEP
00000120 53 6f 6e 69 63 20 53 70 69 6e 62 61 6c 6c 20 20 Sonic Spinball 
00000130 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
00000140 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
00000150 53 6f 6e 69 63 20 53 70 69 6e 62 61 6c 6c 20 20 Sonic Spinball 
00000160 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
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 35 33 37 20 2d 30 30 2a 3f GM MK-1537 -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 55 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 U 
=== Sega Channel message ===
000fffe0 f6 c0 c2 c4 e6 cd c4 cb cb c0 c9 85 85 85 85 85 ................
000ffff0 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 ................
=== Sega Channel message (decrypted) ===
000fffe0 53 65 67 61 43 68 61 6e 6e 65 6c 20 20 20 20 20 SegaChannel 
000ffff0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 
== Files ==
Sonic Unleashed (Aug 31, 2008 prototype)

A preview prototype of Sonic Unleashed for the Xbox 360.
==Notes==
* Disk 1 is the only available from the prototype, while Disk 2 is currently lost.
* Miscellaneous Notes: 
** Disk Label: 1/09/2008 (September 1st, 2008)
** Developer Menu: Revision 6005 06:50:59 4/21/2008 (6:50:59 AM, April 21st, 2008)
==Origin==
SonicUnleashedDisc.png|Original disc
Sonic Unleashed (Oct 28, 2008 prototype)

A prototype of Sonic Unleashed for the Xbox 360.
==Notes==
* Built 1 day before the final build.
* Aside from the .xex, #ActN_PetraEvil.ar.00, #ActN_PetraEvil.arl, and #Application.ar.00 are the only changed files in comparison to the final build.
* XEX information:
** Header Maker ID: SE
** Header Product Code: 2066
** Header Title: SONIC UNLEASHED
** Header PE Name: SWA.exe
** Header Executable Name: /default.xex
** Header: Executable Checksum (MD5): ae9715efab0149fd03ffeaa90e0ccee8
* Miscellaneous Notes:
** Game is emulatable in either Xenia or Xenia-Canary: Yes (as of December 25, 2022).
*** Issues: Vertex explosions sometimes.
==Screenshots==
Screenshot - SONIC UNLEASHED 2022-12-21 23-11-46.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-11-49.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-11-57.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-11-59.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-12-02.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-12-09.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-12-32.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-12-48.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-12-53.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-13-00.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-13-13.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-13-32.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-13-41.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-13-50.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-14-01.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-14-15.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-14-17.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-14-47.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-14-58.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-15-08.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-15-11.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-15-15.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-15-28.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-15-34.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-15-43.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-15-51.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-16-16.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-16-24.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-16-36.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-16-44.png
Screenshot - SONIC UNLEASHED 2022-12-21 23-16-58.png
==Origin==
X360 - Sonic Unleashed 10-29-08.jpeg|Disc front.
==Files==
Archive Contents:
Download File:
==Acknowledgments==
A huge thanks to ehw for researching this prototype! And a huge thanks to the anonymous donor that allowed for this release to happen!
==See also==
 
* Project Deluge: Xbox 360 and Wii (December 25, 2022)
* The Cutting Room Floor (TCRF)
* Internet Archive (IA)
Sonic X-treme (Jul 14, 1996 prototype)

A small tech demo of the unreleased Sonic X-treme done by Point of View for the Sega Saturn.
==Notes==
* Built from source files from a collection of backups from Point of View.
* During the gameplay a text indicates: Sonic Extreme (not X-treme or Xtreme like usual)
==Screenshots==
extreme%20load.jpg
File:Sonic Extreme pov 8.jpg
File:Sonic Extreme pov 9.jpg
File:Sonic Extreme pov 10.jpg
File:Sonic Extreme pov.jpg
File:Sonic Extreme pov 1.jpg
File:Sonic Extreme pov 2.jpg
File:Sonic Extreme pov 3.jpg
File:Sonic Extreme pov 4.jpg
File:Sonic Extreme pov 5.jpg
File:Sonic Extreme pov 6.jpg
File:Sonic Extreme pov 7.jpg
Sonic X-treme (Jul 18, 1996 prototype)

A small tech demo of the unreleased Sonic X-treme for the Sega Saturn.
==Notes==
==Screenshots==
File:SonicXtreme 718 02.jpg
File:SonicXtreme 718 03.jpg
File:SonicXtreme 718 04.jpg
File:SonicXtreme 718 05.jpg
File:SonicXtreme 718 12.jpg
File:SonicXtreme 718 07.jpg
File:SonicXtreme 718 11.jpg
File:Sonic X-treme 718, 1.jpg
File:SonicXtreme 718 10.jpg
File:Sonic X-treme 718, 2.jpg
File:Sonic X-treme 718, 3.jpg
File:Sonic X-treme 718, 4.jpg
File:Sonic X-treme 718, 5.jpg
Sonic X-treme (PC Restoration and Asset Collection)

A collection of short demos demonstrating the Sonic X-treme engine for the PC compiled from source.
==Notes==
* The archive currently contains the following demos (demos will be added as they are preserved):
**Sonic X-Treme_SonicBoom_v037_2015-05-20_Release_001
**Sonic Xtreme Incomplete Source Code (PC Version)
**2015_Oct_23 Release_003
**SONCBOOM v001
**20150220 Release 001
**20150306 Release 002
**20150403_SonicXtreme_Ver40_PC-OpenGL_Release 001
Sonic and the Black Knight (Preview)

A PAL preview version of Sonic and the Black Knight for the Nintendo Wii.
==Notes==
* Originally released by scene group N!NJA on November 25, 2016.
* Predates the final build (or final retail) by around a month.
* The title screen is missing "Online interactions not rated by the ESRB".
==Origin==
SBKPreview.png|Original disc
Sonic and the Secret Rings (Trial)

A trial version of Sonic and the Secret Rings (ソニックと秘密のリング ) for the Nintendo Wii.
==Origin==
File:SSR Trial Disc.png|Original disc
File:SSR Trial Cover Front.png|Packaging front
File:SSR Trial Cover Back.png|Packaging back
File:SSR Trial Instructions 1.png|Instruction book page 1
File:SSR Trial Instructions 2.png|Instruction book page 2
File:SSR Trial Instructions 3.png|Instruction book page 3