Difference between revisions of "Sonic the Hedgehog 2 (Mega Drive)"

From Sega Retro
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| md_code_kr=GM8073JG
 
| md_code_kr=GM8073JG
 
| md_rrp_kr=6,800
 
| md_rrp_kr=6,800
−
| md_date_au=1992-12-1
+
| md_date_au=1992-12-01
 
| md_code_au=FSON01SMC
 
| md_code_au=FSON01SMC
 
| md_date_au_sgc=199x
 
| md_date_au_sgc=199x

Revision as of 06:27, 1 December 2022

"Sonic the Hedgehog 2" redirects here. For the Sega Master System and Sega Game Gear versions, see Sonic the Hedgehog 2 (8-bit). For the 2013 remake, see Sonic the Hedgehog 2 (2013).

n/a

  • NTSC-U/PAL
  • NTSC-J
  • Xbox 360

Sonic2 title.png

SonictheHedgehog2-TitleScreen.png

SonicTheHedgehog2XBLATitleScreen.png

Sonic the Hedgehog 2
System(s): Sega Mega Drive, Mega-Tech, Mega Play, PlayStation 3, Virtual Console, Nintendo Switch Online, Xbox 360, Steam, RealOne Arcade, iOS
Publisher: Sega
Developer:
Sound driver: SMPS Z80 (modified) (SMPS 68000/Sonic the Hedgehog port)
Genre: Action[1][2]

















Number of players: 1-2
Release Date RRP Code
Sega Mega Drive
JP 		¥6,8006,800 G-4088
Sega Mega Drive
US 		$54.9954.99[3][4] 1051
Sega Mega Drive
EU 		1051
Sega Mega Drive
DE 		DM 99.9599.95[6] 1051
Sega Mega Drive
UK 		£39.9939.99[5] 1051
Sega Mega Drive
SE
(Rental)
Sega Mega Drive
GR
Sega Mega Drive
AU 		FSON01SMC
Sega Mega Drive
AU
(Gold) 		FSON01SMC
Sega Mega Drive
CA
Sega Mega Drive
BR 		044130
Sega Mega Drive
BR
(Red) 		044130
Tectoy: Todas as Idades
Sega Mega Drive
KR 		₩6,8006,800 GM8073JG
Sega Mega Drive
AS 		1051-40
Sega Mega Drive
ZA
Arcade (Mega Play)
JP		 ¥? ?
Arcade (Mega-Tech System)
UK		 £? ?

























Wii Virtual Console
JP ▼ 		600pts600[8]
CERO: A
Wii Virtual Console
US ▼ 		800pts800[9]
ESRB: Everyone
Wii Virtual Console
EU ▼ 		800pts800[10]
PEGI: 3+
Wii Virtual Console
AU ▼ 		800pts800[12]
OFLC: General (G)
Nintendo Switch Online
JP ▼
Nintendo Switch Online
US ▼
Nintendo Switch Online
EU ▼
Nintendo Switch Online
UK ▼
Nintendo Switch Online
AU ▼
Xbox 360
JP ▼ 		400MSP400[24]
CERO: A
Xbox 360
JP ▼
(Otameshiban) 		FREEfree
CERO: A
Xbox 360
US ▼ 		400MSP400[18]
ESRB: Everyone
Xbox 360
US ▼
(Trial Game) 		FREEfree
ESRB: Everyone
Xbox 360
EU ▼ 		400MSP400[21]
PEGI: 7+
Xbox 360
EU ▼
(Trial Game) 		FREEfree
PEGI: 7+
Xbox 360
DE ▼ 		400MSP400[22]
USK: 6
Xbox 360
DE ▼
(Trial Game) 		FREEfree
USK: 6
Xbox 360
UK ▼ 		400MSP400[20]
PEGI: 7+
Xbox 360
UK ▼
(Trial Game) 		FREEfree
PEGI: 7+
Xbox 360
AU ▼ 		400MSP400[23]
OFLC: General (G)
Xbox 360
AU ▼
(Trial Game) 		FREEfree
OFLC: General (G)
Xbox 360
KR ▼
GRB: All
iOS
JP ▼ 		¥667 (700)700i[28]
iOS
US ▼ 		$5.995.99[27]
4+
iOS
EU ▼
4+
iOS
UK ▼
4+
RealOne Arcade
US ▼
Steam
US ▼ 		$4.994.99[31] 71163
ESRB: Everyone
Steam
EU ▼ 		€4.494.49[31] 71163
PEGI: 3+
Steam
DE ▼ 		€4.494.49[31] 71163
USK: 6
Steam
UK ▼ 		£3.993.99[31] 71163
PEGI: 3+
Steam
AU ▼ 		$6.996.99[31] 71163
OFLC: General (G)
Steam Linux
US ▼ 		$4.994.99[33] 71163
ESRB: Everyone
Steam Linux
EU ▼ 		€4.494.49[33] 71163
PEGI: 3+
Steam Linux
DE ▼ 		€4.494.49[33] 71163
USK: 6
Steam Linux
UK ▼ 		£3.993.99[33] 71163
PEGI: 3+
Steam Linux
AU ▼ 		$5.995.99[33] 71163
OFLC: General (G)
Steam OS X
US ▼ 		$4.994.99[33] 71163
ESRB: Everyone
Steam OS X
EU ▼ 		€4.494.49[33] 71163
PEGI: 3+
Steam OS X
DE ▼ 		€4.494.49[33] 71163
USK: 6
Steam OS X
UK ▼ 		£3.993.99[33] 71163
PEGI: 3+
Steam OS X
AU ▼ 		$5.995.99[33] 71163
OFLC: General (G)
Sony PlayStation 3
JP ▼ 		¥571 (600)571 (600)[39] NPJB-00127
CERO: A
Sony PlayStation 3
US ▼ 		$3.993.99[34] NPUB-30443
ESRB: Everyone
Sony PlayStation 3
EU ▼ 		€4.494.49[35] NPEB-00477
PEGI: 3+
Sony PlayStation 3
DE ▼ 		€4.494.49[36] NPEB-00477
USK: 0
Sony PlayStation 3
UK ▼ 		£3.693.69[37] NPEB-00477
PEGI: 3+
Sony PlayStation 3
AU ▼ 		$6.756.75[38] NPEB-00477
OFLC: General (G)
Sony PlayStation 3
KR ▼ 		NPHB-00378
GRB: All
Sony PlayStation 3
TW ▼ 		NT$146146[41] NPHB-00378
GSRR: 6+
Sonicretro-round.svg

Visit Sonic the Hedgehog 2 (16-bit) on Sonic Retro for the full article.

Sonicretro-round.svg

Visit Sonic the Hedgehog 2 (arcade game) on Sonic Retro for the full article.

Sonicretro-round.svg

Visit Sonic the Hedgehog 2 (Xbox Live Arcade) on Sonic Retro for the full article.

Sonicretro-round.svg

Visit Sonic the Hedgehog 2 (iPhone) on Sonic Retro for the full article.

Sonicretro-round.svg

Visit Sonic the Hedgehog 2 (PlayStation 3) on Sonic Retro for the full article.

Production credits

Main article: Sonic the Hedgehog 2 (Mega Drive)/Production credits.

Magazine articles

Sega Retro Average 
Publication Score Source
{{{{{icon}}}|L}} Division by zero.
Based on
0 review
Sega Retro Average 
Publication Version Score
1700 igr dlya Sega (RU)
80
[42]
Aktueller Software Markt (DE)
90
[43]
Bad Influence! (UK) PAL
100
[44]
Beep! MegaDrive (JP) NTSC-J
90
[45]
Consoles + (FR)
92
[46]
Cool Gamer (RU)
80
[47]
Computer & Video Games (UK)
94
[48]
Electronic Games (1992-1995) (US) NTSC-U
91
[49]
Electronic Gaming Monthly (US) NTSC-U
88
[50]
Entsiklopediya luchshikh igr Sega. Vypusk 1 (RU)
80
[51]
Entsiklopediya luchshikh igr Sega. Vypusk 2 (RU)
80
[52]
Famitsu (JP) NTSC-J
75
[53]
GameFan (US)
99
[54]
Game Mania (UK)
93
[55]
Game Power (IT)
89
[56]
GamePro (US) NTSC-U
98
[57]
Gamers (DE)
87
[58]
GamesMaster (UK)
65
[59]
Game Informer (US) NTSC-U
91
[60]
HiScore (DK) PAL
82
[61]
Hobby Consolas (ES)
96
[62]
Joypad (FR)
95
[63]
Joystick (FR) PAL
96
[64]
Sega Mega Drive Advanced Gaming (UK)
93
[65]
Mega (UK)
94
[66]
Mega Action (UK)
94
[67]
Mega Action (UK)
89
[68]
Megablast (DE)
80
[69]
Mega Force (FR)
95
[70]
Mega Fun (DE) PAL
88
[71]
MegaTech (UK)
93
[72]
Micromanía (segunda época) (ES)
82
[73]
Mean Machines Sega (UK) PAL
96
[5]
Megazone (AU)
96
[74]
OK Consolas (ES)
97
[75]
Player One (FR)
97
[76]
Play Time (DE)
91
[77]
Sega Power (UK) PAL
89
[78]
Sega Pro (UK) PAL
94
[79]
Sega Pro (UK)
94
[80]
Sega Pro (DE)
92
[81]
Sega Zone (UK) PAL
92
[82]
Sega Force Mega (UK)
95
[83]
Sega Force (SE)
100
[84]
Sega Force (UK)
97
[85]
Sega Mega Drive Review (RU)
88
[86]
Sega Saturn Magazine (JP) NTSC-J
86
[87]
Sonic the Comic (UK) PAL
91
[88]
Tricks 16 bit (RU)
91
[89]
User (GR) PAL
97
[90]
VideoGames & Computer Entertainment (US) NTSC-U
90
[4]
Video Games (DE)
83
[91]
Sega Mega Drive
 90
Based on
52 reviews

Sonic the Hedgehog 2 (Mega Drive)

Main article: Sonic the Hedgehog 2 (Mega Drive)/Magazine articles.

Technical information

ROM dump status

System Hash Size Build Date Source Comments
Sega Mega Drive
✔
CRC32 24ab4c3a
MD5 8e2c29a1e65111fe2078359e685e7943
SHA-1 14dd06fc3aa19a59a818ea1f6de150c9061b14d4
1MB 1992-09-26 Cartridge[92] v00
Sega Mega Drive
✔
CRC32 7b905383
MD5 9feeb724052c39982d432a7851c98d3e
SHA-1 8bca5dcef1af3e00098666fd892dc1c2a76333f9
1MB 1992-09-29 Cartridge v01
Sega Mega Drive
✔
CRC32 39faaa70
MD5 a460bf633579a80eebbc09d6809e1b09
SHA-1 5b51b4d98cb4a7a38157dc4ab9462164dd224bfd
1MB 1991-04 Cartridge[93] Nick Arcade prototype Page
Sega Mega Drive
✔
CRC32 eea21b5c
MD5 51c1eee9dd79db9ef0d8b0aa36957b16
SHA-1 2f3228088b000260c2e00961efb0ed76629c84e9
1MB 1991-04 Cartridge Simon Wai prototype Page
Sega Mega Drive
✔
CRC32 370b3ce5
MD5 4f779c3e0ee0bd0686aab8f9e16a4002
SHA-1 c337d2f11a0630d61fc3c4f95d6e7970bb1f7910
1MB 1992-08-21 EPROMs[94] Alpha Page
Sega Mega Drive
✔
CRC32 0be8afa7
MD5 ef4148440b61bf101286f9e410da2740
SHA-1 24d6451a1ac72837cc2d88b93138677b5d043ae6
1MB 1992-09-14 EPROMs[95] Pre-beta Page
Sega Mega Drive
 ?
CRC32 5667eced
MD5 f90f777f544720d9c76986212ae70ea1
SHA-1 9bebfb78049e7556fbef30f4a43d204fbf4c64f0
1MB 1991-04 Cartridge CENSOR prototype Page
Sega Mega Drive
✔
CRC32 8fda5cc5
MD5 87dfce45e665fa34104067cae1a74d5e
SHA-1 66ec1392f13a6e8ed8d0837492ca32daad769900
1MB 1992-09-18 CD-R disc[96] Beta 4 Page
Sega Mega Drive
✔
CRC32 066b9a89
MD5 df7d6c4fa1899d45405654b1250b4330
SHA-1 b60f424e77be28ffa6937de3a08256ca55e6fe40
1MB 1992-09-21 CD-R disc[97] Beta 5 Page
Sega Mega Drive
✔
CRC32 cebc64e0
MD5 7640c831369b8c8f52880b3fe5506bbf
SHA-1 21dfc1142809622d5548e83f2c3544c34e0b2320
1MB 1992-09-22 CD-R disc[98] Beta 6 (first build) Page
Sega Mega Drive
✔
CRC32 cb036e6c
MD5 0ad4b54b426eb0b0d0360d0453233a0a
SHA-1 c9fdce433de4661e5f6f276a9b8c1b2b139b6709
1MB 1992-09-22 CD-R disc[99] Beta 6 (second build) Page
Sega Mega Drive
✔
CRC32 dc7be12c
MD5 d39416089539e379f4c8ee7900f636b8
SHA-1 14c6ec07bcc1450d7ed3afcc9994c7d994a9b52d
1MB 1992-09-24 CD-R disc[100] Beta 7 Page
Sega Mega Drive
✔
CRC32 6089fadd
MD5 0cc77d8f87bc9e6dc990bbe126b4701e
SHA-1 5f2dce167d03566d356dbdbcdd38b1b1dfb56b09
1MB 1992-09-24 CD-R disc[101] Beta 8 Page
Sega Mega Drive
✘
CRC32 f23ad4b3
MD5 da75878c193293c2e0801a61ea4ce8c0
SHA-1 2af1003247aec262089c8df22d05e80d04a1b5e4
1MB 1992-09 Sonic Compilation Hack; extracted from Sonic Compilation. Assumed to be v02.

References

  1. ↑ File:Sonic2 box jap.jpg
  2. ↑ 2.0 2.1 https://sega.jp/history/hard/megadrive/software.html (Wayback Machine: 2020-07-20 09:51)
  3. ↑ GamePro, "January 1993" (US; 199x-xx-xx), page 51
  4. ↑ 4.0 4.1 VideoGames & Computer Entertainment, "December 1992" (US; 1992-1x-xx), page 69
  5. ↑ 5.0 5.1 Mean Machines Sega, "November 1992" (UK; 1992-10-xx), page 60
  6. ↑ Sega Magazin, "September/Oktober 1993" (DE; 1993-09-01), page 71
  7. ↑ https://www.nintendo.co.jp/wii/vc/software/03.html (Wayback Machine: 2018-03-06 00:26)
  8. ↑ http://vc.sega.jp:80/vc_sonic2/ (Wayback Machine: 2007-06-20 09:53)
  9. ↑ 9.0 9.1 http://www.nintendo.com/games/detail/Ep8oLkJXWlgKpLFfuEve8Gb_qEWumasV (Wayback Machine: 2010-11-23 02:20)
  10. ↑ 10.0 10.1 http://www.nintendolife.com:80/games/megadrive/sonic_the_hedgehog_2 (Wayback Machine: 2017-09-09 22:02)
  11. ↑ https://www.nintendo.co.uk/Games/Virtual-Console-Wii-/Sonic-the-Hedgehog-2-279118.html (archive.today)
  12. ↑ http://www.nintendo.com.au/index.php?action=catalogue&prodcat_id=41&prod_id=19771&pageID=4 (Wayback Machine: 2012-03-28 00:58)
  13. ↑ https://store-jp.nintendo.com/list/software/70010000046986.html (Wayback Machine: 2021-10-26 03:04)
  14. ↑ @NintendoAmerica on Twitter (archive.today)
  15. ↑ @NintendoEurope on Twitter (archive.today)
  16. ↑ @NintendoUK on Twitter (archive.today)
  17. ↑ @NintendoAUNZ on Twitter (archive.today)
  18. ↑ 18.0 18.1 Xbox.com (en-US; s/sonic2xboxlivearcade) (Wayback Machine: 2010-07-01 12:41)
  19. ↑ Xbox LIVE Marketplace (en-US; Sonic-The-Hedgehog-2/66acd000-77fe-1000-9115-d80258410863) (Wayback Machine: 2010-10-24 15:07)
  20. ↑ 20.0 20.1 20.2 Xbox LIVE Marketplace (en-GB; Sonic-The-Hedgehog-2/66acd000-77fe-1000-9115-d80258410863) (Wayback Machine: 2010-10-26 03:08)
  21. ↑ 21.0 21.1 21.2 Xbox LIVE Marketplace (fr-FR; Sonic-The-Hedgehog-2/66acd000-77fe-1000-9115-d80258410863) (Wayback Machine: 2011-01-02 16:13)
  22. ↑ 22.0 22.1 22.2 Xbox LIVE Marketplace (de-DE; Sonic-The-Hedgehog-2/66acd000-77fe-1000-9115-d80258410863) (Wayback Machine: 2011-01-25 10:10)
  23. ↑ 23.0 23.1 23.2 Xbox LIVE Marketplace (en-AU; Sonic-The-Hedgehog-2/66acd000-77fe-1000-9115-d80258410863) (Wayback Machine: 2011-02-21 19:54)
  24. ↑ 24.0 24.1 24.2 Xbox LIVE Marketplace (ja-JP; media/66acd000-77fe-1000-9115-d80258410863) (Wayback Machine: 2009-06-15 19:57)
  25. ↑ Xbox LIVE Marketplace (ko-kr; Sonic-The-Hedgehog-2/66acd000-77fe-1000-9115-d80258410863) (Wayback Machine: 2018-07-10 21:46)
  26. ↑ 26.0 26.1 26.2 http://blogs.sega.com/2010/04/21/sonic-the-hedgehog-2-now-available-on-iphone-ipod-touch-and-ipad/ (Wayback Machine: 2018-04-18 02:37)
  27. ↑ http://blogs.sega.com/2010/08/26/segas-back-to-school-iphone-sale/ (Wayback Machine: 2017-11-25 19:32)
  28. ↑ 28.0 28.1 http://sega.jp/kt/apple/sonic2/ (Wayback Machine: 2010-05-13 17:20)
  29. ↑ [ ]
  30. ↑ 30.0 30.1 30.2 30.3 30.4 https://steamdb.info/app/71163/ (Wayback Machine: 2019-11-16 23:27)
  31. ↑ 31.0 31.1 31.2 31.3 31.4 http://steamdb.info/app/71163/ (Wayback Machine: 2013-05-22 19:33)
  32. ↑ 32.0 32.1 32.2 32.3 32.4 32.5 32.6 32.7 32.8 32.9 https://steamdb.info/app/71163/history/?changeid=5749251
  33. ↑ 33.0 33.1 33.2 33.3 33.4 33.5 33.6 33.7 33.8 33.9 http://steamdb.info/app/71163/ (Wayback Machine: 2019-11-16 23:27)
  34. ↑ 34.0 34.1 PlayStation Store (en-us; UP0177-NPUB30443_00-SVCSONIC2XXXXXXX) (Wayback Machine: 2018-04-04 22:09)
  35. ↑ 35.0 35.1 PlayStation Store (fr-fr; EP0177-NPEB00477_00-SVCSONIC2XXXXXXX) (Wayback Machine: 2018-04-04 22:11)
  36. ↑ 36.0 36.1 PlayStation Store (de-de; EP0177-NPEB00477_00-SVCSONIC2XXXXXXX) (Wayback Machine: 2018-12-15 21:35)
  37. ↑ 37.0 37.1 PlayStation Store (en-gb; EP0177-NPEB00477_00-SVCSONIC2XXXXXXX) (Wayback Machine: 2018-04-04 22:09)
  38. ↑ 38.0 38.1 PlayStation Store (en-au; EP0177-NPEB00477_00-SVCSONIC2XXXXXXX) (Wayback Machine: 2018-04-04 22:09)
  39. ↑ 39.0 39.1 http://www.jp.playstation.com:80/software/title/jp0177npjb00127_00svcsonic2xxxxxxx.html (Wayback Machine: 2013-01-23 05:44)
  40. ↑ PlayStation Store (ko-kr; UP0177-NPHB00378_00-FULLGAME00000000) (Wayback Machine: 2018-04-04 22:11)
  41. ↑ 41.0 41.1 PlayStation Store (en-tw; UP0177-NPHB00378_00-FULLGAME00000000) (Wayback Machine: 2018-04-04 22:12)
  42. ↑ 1700 igr dlya Sega, "" (RU; 2001-xx-xx), page 216
  43. ↑ Aktueller Software Markt, "Dezember 1992" (DE; 1992-11-13), page 8
  44. ↑ Bad Influence!, "xxxx 1993" (UK; 1993-0x-xx), page 46
  45. ↑ Beep! MegaDrive, "December 1992" (JP; 1992-11-07), page 31
  46. ↑ Consoles +, "Octobre 1992" (FR; 1992-xx-xx), page 56
  47. ↑ Cool Gamer, "9" (RU; 2002-10-13), page 194
  48. ↑ Computer & Video Games, "November 1992" (UK; 1992-10-15), page 22
  49. ↑ Electronic Games (1992-1995), "December 1992" (US; 1992-11-10), page 74
  50. ↑ Electronic Gaming Monthly, "December 1992" (US; 1992-xx-xx), page 26
  51. ↑ Entsiklopediya luchshikh igr Sega. Vypusk 1, "" (RU; 1999-xx-xx), page 359
  52. ↑ Entsiklopediya luchshikh igr Sega. Vypusk 2, "" (RU; 2000-xx-xx), page 239
  53. ↑ Famitsu, "1992-11-27" (JP; 1992-11-13), page 42
  54. ↑ GameFan, "Volume 1, Issue 2: December 1992" (US; 1992-xx-xx), page 9
  55. ↑ Game Mania, "May 1993" (UK; 1993-xx-xx), page 80
  56. ↑ Game Power, "Novembre 1992" (IT; 1992-1x-xx), page 74
  57. ↑ GamePro, "January 1993" (US; 199x-xx-xx), page 50
  58. ↑ Gamers, "Dezember/Januar 1993" (DE; 1992-11-19), page 40
  59. ↑ GamesMaster, "January 1993" (UK; 1992-12-03), page 56
  60. ↑ Game Informer, "January/February 1993" (US; 199x-xx-xx), page 58
  61. ↑ HiScore, "15 Juli - 15 September" (DK; 1993-07-15), page 19
  62. ↑ Hobby Consolas, "Noviembre 1992" (ES; 1992-xx-xx), page 50
  63. ↑ Joypad, "Novembre 1992" (FR; 1992-1x-xx), page 64
  64. ↑ Joystick, "Décembre 1992" (FR; 1992-1x-xx), page 158
  65. ↑ Sega Mega Drive Advanced Gaming, "December 1992" (UK; 1992-xx-xx), page 44
  66. ↑ Mega, "November 1992" (UK; 1992-10-15), page 36
  67. ↑ Mega Action, "June 1993" (UK; 1993-05-20), page 65
  68. ↑ Mega Action, "March 1994" (UK; 1994-02-24), page 80
  69. ↑ Megablast, "4/93" (DE; 1993-09-29), page 36
  70. ↑ Mega Force, "Novembre 1992" (FR; 1992-11-09), page 72
  71. ↑ Mega Fun, "11/92" (DE; 1992-10-xx), page 34
  72. ↑ MegaTech, "August 1993" (UK; 1993-07-20), page 50
  73. ↑ Micromanía (segunda época), "Diciembre 1992" (ES; 1992-1x-xx), page 46
  74. ↑ Megazone, "December/January 1992/1993" (AU; 1992-xx-xx), page 31
  75. ↑ OK Consolas, "xxxx 1992" (ES; 1992-xx-xx), page 16
  76. ↑ Player One, "Novembre 1992" (FR; 1992-11-10), page 56
  77. ↑ Play Time, "1/93" (DE; 1992-12-09), page 90
  78. ↑ Sega Power, "December 1992" (UK; 1992-11-05), page 28
  79. ↑ Sega Pro, "Christmas 1992" (UK; 1992-12-10), page 51
  80. ↑ Sega Pro, "April 1993" (UK; 1993-03-11), page 67
  81. ↑ Sega Pro, "Dezember 1992" (DE; 1992-11-27), page 30
  82. ↑ Sega Zone, "November 1992" (UK; 1992-10-28), page 18
  83. ↑ Sega Force Mega, "August 1993" (UK; 1993-06-24), page 91
  84. ↑ Sega Force, "1/93" (SE; 1993-01-14), page 6
  85. ↑ Sega Force, "December 1992" (UK; 1992-11-05), page 14
  86. ↑ Sega Mega Drive Review, "1" (RU; 1995-04-03), page 139
  87. ↑ Sega Saturn Magazine, "September 1995" (JP; 1995-08-08), page 85
  88. ↑ Sonic the Comic, "2 August 1996" (UK; 1996-07-24), page 10
  89. ↑ Tricks 16 bit, "Tricks Sega Gold 800 igr" (RU; 1998-03-20), page 24
  90. ↑ User, "Fevrouários 1993" (GR; 1993-0x-xx), page 42
  91. ↑ Video Games, "12/92" (DE; 1992-11-23), page 54
  92. ↑ https://forums.sonicretro.org/index.php?showtopic=5030&view=findpost&p=81642
  93. ↑ Hidden Palace: Sonic the Hedgehog 2 (Nick Arcade prototype)
  94. ↑ Hidden Palace: Sonic the Hedgehog 2 (Aug 21, 1992 prototype)
  95. ↑ Hidden Palace: Sonic the Hedgehog 2 (Sep 14, 1992 prototype)
  96. ↑ Hidden Palace: Sonic the Hedgehog 2 (Sep 18, 1992 prototype - Beta 4)
  97. ↑ Hidden Palace: Sonic the Hedgehog 2 (Sep 21, 1992 prototype - Beta 5)
  98. ↑ Hidden Palace: Sonic the Hedgehog 2 (Sep 22, 1992 prototype - Beta 6)
  99. ↑ Hidden Palace: Sonic the Hedgehog 2 (Sep 22, 1992 prototype - Beta 6 - B)
  100. ↑ Hidden Palace: Sonic the Hedgehog 2 (Sep 24, 1992 prototype - Beta 7)
  101. ↑ Hidden Palace: Sonic the Hedgehog 2 (Sep 24, 1992 prototype - Beta 8)
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