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Visit SMSPower.org for more Sega 8-bit stuff!
Active since 1997, SMS Power is an international force of enthusiasts interested in the following gaming/computer systems:
- Sega Master System (SMS) / Sega Mark III (MK3)
- Sega Game Gear (GG)
- Sega Game 1000 (SG-1000)
- Sega Computer 3000 (SC-3000)
- Sega Super Control Station (SF-7000)
- Othello Multivision (OMV) (SG-1000 clone)
And their regional variants (Korean Samsung Gam*Boy, Taiwanese Aaronix consoles, etc.). All generally referred to as "Sega 8-bit" systems, being 8-bit Z80 CPU based Sega systems.
SMSPower aims to:
- Discuss, gather, publish and preserve historical facts, data and knowledge related to those systems.
- Develop Sega 8-bit interest and enjoyment around the world.
This site was founded at the end of March 1997, first under the name "SMS Camp". It later evolved into a generic emulation site called "Emulation Camp" then split, went back into focus and was renamed to "SMS Power!" in 1999. Many people have joined the community since then and are working hard in order to make this site and our projects a reality.
Prototypes
Bock has released 131 prototypes.
| Date | System | File release date | Page creation date"Creation date" is a predefined property that corresponds to the date of the first revision of a subject and is provided by Semantic MediaWiki. | |
|---|---|---|---|---|
| 3D Gunner (Prototype) | Sega Master System | 14 December 2019 | 15 December 2019 01:27:21 | |
| Action Fighter (Prototype) | Sega Master System | 11 March 2017 01:13:23 | ||
| Alex Kidd: High-Tech World (Prototype) | Sega Master System | 28 March 2019 | 30 March 2019 23:25:32 | |
| Alien Syndrome (Prototype) | Sega Master System | 11 March 2017 01:16:51 | ||
| Andre Agassi Tennis (Prototype) | Game Gear | 28 March 2019 | 30 March 2019 23:40:14 | |
| Astro Warrior & Pit Pot (Prototype) | Sega Master System | 28 December 2021 | 31 December 2021 19:59:32 | |
| Ax Battler: A Legend of Golden Axe (Oct 8, 1991 prototype) | Game Gear | 11 March 2017 01:48:42 | ||
| Ayrton Senna's Super Monaco GP II (Prototype) | Game Gear | 11 March 2017 07:25:52 | ||
| Barbie Super Model (Prototype) | Game Gear | 11 March 2017 07:28:00 | ||
| Basketball Nightmare (Prototype) | Sega Master System | 27 March 2021 | 28 March 2021 15:56:13 | |
| Battle Wings (Prototype) | Sega Master System | 20 October 2020 | 26 October 2020 23:13:36 | |
| BreakThru! (Game Gear Prototype) | Game Gear | 24 August 2021 | 4 September 2021 17:31:18 | |
| Bubble Bobble (Game Gear Prototype) | Game Gear | 6 October 2018 13:56:49 | ||
| CJ: Elephant Fugitive (Oct 22, 1993 prototype) | 22 October 1993 | Game Gear | 28 March 2019 | 30 March 2019 23:29:51 |
| Captain Silver (Prototype) | Sega Master System | 11 March 2017 07:30:21 | ||
| Cave Dude (Prototype) | Game Gear | 11 March 2017 07:32:37 | ||
| Chicago Syndicate (Mar 20, 1995 prototype) | 20 March 1995 | Game Gear | 28 March 2019 | 30 March 2019 23:46:07 |
| Choplifter! (Jul 1, 1986 prototype) | Sega Master System | 11 March 2017 07:35:29 | ||
| Choplifter! (SG-1000 Prototype) | SG-1000 | 11 March 2017 07:44:41 | ||
| Choplifter! (Sega Master System Prototype) | Sega Master System | 11 March 2017 07:36:23 | ||
| Chouon Senshi Borgman (Prototype) | Sega Master System | 11 March 2017 07:49:05 | ||
| Chuck Rock (Prototype) | Game Gear | 11 March 2017 07:52:05 | ||
| Columns (Prototype) | Sega Master System | 11 March 2017 07:57:27 | ||
| Crazy Faces (Prototype) | Game Gear | 11 March 2017 07:59:09 | ||
| Cutthroat Island (Prototype) | Game Gear | 11 March 2017 08:02:39 | ||
| Cyber Police ESWAT (Prototype A) | Sega Master System | 11 March 2017 08:06:12 | ||
| Cyber Police ESWAT (Prototype B) | Sega Master System | 11 March 2017 08:07:15 | ||
| Cyber Police ESWAT (Prototype C) | Sega Master System | 11 March 2017 08:07:45 | ||
| Cyborg Hunter (Prototype) | Sega Master System | 20 October 2020 | 26 October 2020 23:32:59 | |
| David Robinson's Supreme Court (Prototype) | Game Gear | 29 March 2017 22:04:51 | ||
| Dead Angle (Prototype) | Sega Master System | 9 November 2021 | 23 December 2021 21:41:22 | |
| Defenders of Oasis (Prototype) | Game Gear | 11 March 2017 08:16:35 | ||
| Dinobasher Starring Bignose the Caveman (Game Gear Prototype) | Game Gear | 3 October 2020 16:42:26 | ||
| Dinobasher Starring Bignose the Caveman (Master System Prototype) | Sega Master System | 11 March 2017 08:20:09 | ||
| Doki Doki Penguin Land: Uchuu Daibouken (Prototype) | Sega Master System | 11 March 2017 08:23:31 | ||
| Double Dragon Game Gear (Prototype) | Game Gear | 11 March 2017 08:13:56 | ||
| Double Hawk (Prototype) | Sega Master System | 11 March 2017 08:26:25 | ||
| Dr. Franken (Prototype) | Game Gear | 11 March 2017 08:28:05 | ||
| Dragon: The Bruce Lee Story (Prototype) | Game Gear | 19 January 2019 22:48:36 | ||
| Dynamite Düx (Prototype) | Sega Master System | 28 December 2021 | 31 December 2021 19:53:10 | |
| Dynamite Headdy (Earlier Game Gear Prototype) | Game Gear | 23 May 2021 | 26 May 2021 12:43:19 | |
| Fantasy Zone (REV01 prototype) | Sega Master System | 11 March 2017 08:30:31 | ||
| Fire & Ice (Prototype) | Sega Master System | 11 March 2017 08:32:32 | ||
| Frogger Game Gear (Prototype) | Game Gear | 11 March 2017 08:35:46 | ||
| Gain Ground (Prototype) | Sega Master System | 11 March 2017 08:37:42 | ||
| Ghost House (Prototype) | Sega Master System | 11 March 2017 08:39:51 | ||
| Ghouls 'N Ghosts (prototype) | Sega Master System | 11 March 2017 08:41:55 | ||
| Global Defense (Prototype) | Sega Master System | 11 March 2017 09:05:17 | ||
| Golfamania (Prototype) | Sega Master System | 11 March 2017 19:51:01 | ||
| Great Golf (Prototype) | Sega Master System | 11 March 2017 09:08:26 | ||
| Hang On & Safari Hunt (Prototype) | Sega Master System | 11 March 2017 09:10:46 | ||
| Hang-On (Prototype) | Sega Master System | 28 March 2019 | 30 March 2019 23:52:12 | |
| Heroes of the Lance (Master System Prototype) | Sega Master System | 23 May 2021 | 26 May 2021 12:37:12 | |
| Hook (Sega Master System Prototype) | Sega Master System | 11 March 2017 09:12:32 | ||
| Impossible Mission (Prototype) | Sega Master System | 11 March 2017 09:15:16 | ||
| Indiana Jones and the Last Crusade (Prototype) | Sega Master System | 11 March 2017 09:18:03 | ||
| James 'Buster' Douglas Knockout Boxing (Prototype) | Sega Master System | 11 March 2017 09:21:09 | ||
| King's Quest: Quest for the Crown (Prototype) | Sega Master System | 11 March 2017 09:24:20 | ||
| Lemmings 2 Game Gear (Prototype) | Game Gear | 11 March 2017 09:26:39 | ||
| Lemmings 2 Sega Master System (Prototype) | Sega Master System | 11 March 2017 09:27:36 | ||
| Lethal Weapon 3 (Prototype) | Sega Master System | 11 March 2017 09:29:14 | ||
| Mahjong Sengoku Jidai (Prototype) | Sega Master System | 11 March 2017 09:37:14 | ||
| Maou Golvellius (Prototype) | Sega Master System | 11 March 2017 09:41:02 | ||
| Micro Machines (Oct 22, 1993 prototype) | 22 October 1993 | Game Gear | 28 March 1993 | 30 March 2019 23:34:49 |
| Miracle Warriors: Seal of the Dark Lord (Prototype) | Sega Master System | 11 March 2017 09:43:23 | ||
| Missle Defense 3-D (Prototype) | Sega Master System | 6 October 2018 13:50:47 | ||
| Monopoly (Sega Master System prototype) | Sega Master System | 11 March 2017 09:45:17 | ||
| Montezuma's Revenge (Prototype) | Sega Master System | 11 March 2017 09:47:03 | ||
| Mortal Kombat (Game Gear Prototype) | Game Gear | 23 May 2021 | 26 May 2021 12:32:08 | |
| NBA Jam Sega Master System (Prototype) | Sega Master System | 11 March 2017 09:52:10 | ||
| Nazo Puyo: Arle no Roux (Prototype) | Game Gear | 11 March 2017 09:49:33 | ||
| Off the Wall (Jun 28, 1992 prototype) | 28 June 1992 | Game Gear | 23 July 2017 16:10:22 | |
| Off the Wall (Prototype) | TurboGrafx-16 | 23 July 2017 16:14:14 | ||
| Out Run 3-D (Prototype) | Sega Master System | 20 October 2020 | 26 October 2020 23:26:13 | |
| Paperboy 2 (Prototype) | Game Gear | 11 March 2017 09:56:02 | ||
| Pat Riley Basketball Sega Master System (Prototype) | Sega Master System | 11 March 2017 09:59:25 | ||
| Promocao Especial Sega Master System III Compact | Sega Master System | 11 March 2017 10:02:53 | ||
| R-Type (Prototype) | Sega Master System | 11 March 2017 10:09:30 | ||
| R.C. Grand Prix (Prototype) | Sega Master System | 11 March 2017 10:05:58 | ||
| Rampage (SMS Prototype) | Sega Master System | 28 December 2021 | 31 December 2021 19:56:38 | |
| Rastan (Prototype) | Sega Master System | 27 March 2021 | 28 March 2021 16:03:18 | |
| Rayman (SNES prototype) | SNES | 3 July 2017 19:32:00 | ||
| SG-1000 M2 Check Program (Prototype) | SG-1000 | 11 March 2017 17:28:16 | ||
| Sega Game Pack 4 in 1 (Prototype) | Game Gear | 11 March 2017 10:13:06 | ||
| Sega Graphic Board (Aug 25, 1987 prototype) | Sega Master System | 11 March 2017 10:19:27 | ||
| Sega Master System BIOS M404 (Prototype) | Sega Master System | 11 March 2017 17:23:29 | ||
| Sega Master System BIOS v1.0 (Prototype) | Sega Master System | 11 March 2017 17:25:08 | ||
| Sega Master System Color and Switch Test (Prototype) | Sega Master System | 11 March 2017 07:55:09 | ||
| Shanghai (Prototype) | Sega Master System | 11 March 2017 17:30:26 | ||
| Slap Shot (Prototype) | Sega Master System | 11 March 2017 17:32:33 | ||
| Solomon no Kagi: Oujo Rihita no Namida (Prototype) | 1 February 1988 | Sega Master System | 4 August 2018 18:34:12 | |
| Sonic & Tails (Demo) | 14 September 1993 | Game Gear | 11 March 2017 17:42:49 | |
| Sonic Drift (Demo) | Game Gear | 11 March 2017 17:48:44 | ||
| Sonic the Hedgehog (8-bit) (Prototype) | Game Gear | 11 March 2017 17:46:46 | ||
| Special Criminal Investigation (Prototype) | Sega Master System | 11 March 2017 17:59:05 | ||
| Spirou (Game Gear prototype) | Game Gear | 11 March 2017 18:06:14 | ||
| Street Battle (Prototype) | Game Gear | 29 March 2017 22:02:04 | ||
| Street Heroes (Prototype A) | Game Gear | 11 March 2017 18:09:40 | ||
| Street Heroes (Prototype B) | Game Gear | 11 March 2017 18:10:20 | ||
| Streets of Rage 2 (Game Gear Prototype) | Game Gear | 9 November 2021 | 23 December 2021 21:35:55 | |
| Strider (Prototype) | Sega Master System | 11 March 2017 18:12:26 | ||
| Summer Games (Prototype A) | Sega Master System | 28 December 2021 | 31 December 2021 19:26:29 | |
| Summer Games (Prototype B) | Sega Master System | 11 March 2017 18:22:38 | ||
| Super Basketball (Prototype) | Sega Master System | 11 March 2017 18:24:50 | ||
| Super Golf (Prototype) | Sega Master System | 7 December 2016 22:36:07 | ||
| Super Monaco GP Sega Master System (Prototype A) | Sega Master System | 11 March 2017 18:28:28 | ||
| Super Monaco GP Sega Master System (Prototype B) | Sega Master System | 11 March 2017 18:29:17 | ||
| Super Off Road (Game Gear Prototype) | Game Gear | 29 March 2017 22:06:56 | ||
| Super Off Road (Sega Master System Prototype) | Sega Master System | 19 January 2019 23:01:58 | ||
| Superman (Prototype) | Game Gear | 11 March 2017 18:31:30 | ||
| Taito Chase H.Q. (Prototype) | Sega Master System | 27 March 2021 | 28 March 2021 16:09:59 | |
| Taz-Mania Sega Master System (Prototype) | Sega Master System | 11 March 2017 18:33:44 | ||
| Teddy Boy Blues EPMycard (Prototype) | Sega Master System | 11 March 2017 18:37:26 | ||
| Tengen World Cup Soccer (Prototype) | Game Gear | 27 March 2021 | 28 March 2021 16:14:58 | |
| The A-Team (Prototype) | Sega Master System | 11 March 2017 01:51:35 | ||
| The Cyber Shinobi (Prototype) | Sega Master System | 11 March 2017 08:09:59 | ||
| The Excellent Dizzy Collection (Prototype) | Sega Master System | 11 March 2017 18:42:19 | ||
| The Lucky Dime Caper starring Donald Duck (May 28, 1991 prototype) | 28 May 1991 | Sega Master System | 11 March 2017 09:34:04 | |
| The Smurfs Travel the World (Aug 12, 1996) | 12 August 1996 | Sega Master System | 11 March 2017 17:39:33 | |
| TransBot (Prototype) | Sega Master System | 11 March 2017 18:44:38 | ||
| WildSnake (Gamegear Prototype) | Game Gear | 21 November 2016 22:22:55 | ||
| Wonder Boy III: The Dragon's Trap (Prototype) | Game Gear | 11 March 2017 18:47:51 | ||
| Wonder Boy in Monster Land (Prototype) | Sega Master System | 11 March 2017 18:50:25 | ||
| World Cup Italia '90 (Prototype) | Sega Master System | 11 March 2017 18:52:54 | ||
| World Games (Prototype) | Sega Master System | 11 March 2017 18:55:19 | ||
| World Grand Prix (Prototype) | Sega Master System | 11 March 2017 18:57:35 | ||
| Yogi Bear in Yogi Bear's Goldrush (Prototype) | Game Gear | 11 March 2017 18:59:20 | ||
| Ys: Ancient Ys Vanished Omen (Prototype) | Sega Master System | 11 March 2017 19:04:38 | ||
| Zaxxon 3D (Prototype) | Sega Master System | 11 March 2017 19:07:32 | ||
| Zillion II: Tri Formation (Prototype) | Sega Master System | 27 March 2021 | 28 March 2021 15:49:37 | |
| Zoop (Game Gear Prototype) | Game Gear | 11 March 2017 19:09:03 |
Bock has dumped 122 prototypes.
| Date | System | File release date | Page creation date"Creation date" is a predefined property that corresponds to the date of the first revision of a subject and is provided by Semantic MediaWiki. | |
|---|---|---|---|---|
| 3D Gunner (Prototype) | Sega Master System | 14 December 2019 | 15 December 2019 01:27:21 | |
| Action Fighter (Prototype) | Sega Master System | 11 March 2017 01:13:23 | ||
| Alex Kidd: High-Tech World (Prototype) | Sega Master System | 28 March 2019 | 30 March 2019 23:25:32 | |
| Alien Syndrome (Prototype) | Sega Master System | 11 March 2017 01:16:51 | ||
| Andre Agassi Tennis (Prototype) | Game Gear | 28 March 2019 | 30 March 2019 23:40:14 | |
| Astro Warrior & Pit Pot (Prototype) | Sega Master System | 28 December 2021 | 31 December 2021 19:59:32 | |
| Ax Battler: A Legend of Golden Axe (Oct 8, 1991 prototype) | Game Gear | 11 March 2017 01:48:42 | ||
| Ayrton Senna's Super Monaco GP II (Prototype) | Game Gear | 11 March 2017 07:25:52 | ||
| Barbie Super Model (Prototype) | Game Gear | 11 March 2017 07:28:00 | ||
| Basketball Nightmare (Prototype) | Sega Master System | 27 March 2021 | 28 March 2021 15:56:13 | |
| Battle Wings (Prototype) | Sega Master System | 20 October 2020 | 26 October 2020 23:13:36 | |
| Bubble Bobble (Game Gear Prototype) | Game Gear | 6 October 2018 13:56:49 | ||
| CJ: Elephant Fugitive (Oct 22, 1993 prototype) | 22 October 1993 | Game Gear | 28 March 2019 | 30 March 2019 23:29:51 |
| Captain Silver (Prototype) | Sega Master System | 11 March 2017 07:30:21 | ||
| Cave Dude (Prototype) | Game Gear | 11 March 2017 07:32:37 | ||
| Chicago Syndicate (Mar 20, 1995 prototype) | 20 March 1995 | Game Gear | 28 March 2019 | 30 March 2019 23:46:07 |
| Choplifter! (Jul 1, 1986 prototype) | Sega Master System | 11 March 2017 07:35:29 | ||
| Choplifter! (SG-1000 Prototype) | SG-1000 | 11 March 2017 07:44:41 | ||
| Choplifter! (Sega Master System Prototype) | Sega Master System | 11 March 2017 07:36:23 | ||
| Chouon Senshi Borgman (Prototype) | Sega Master System | 11 March 2017 07:49:05 | ||
| Chuck Rock (Prototype) | Game Gear | 11 March 2017 07:52:05 | ||
| Columns (Prototype) | Sega Master System | 11 March 2017 07:57:27 | ||
| Crazy Faces (Prototype) | Game Gear | 11 March 2017 07:59:09 | ||
| Cutthroat Island (Prototype) | Game Gear | 11 March 2017 08:02:39 | ||
| Cyber Police ESWAT (Prototype A) | Sega Master System | 11 March 2017 08:06:12 | ||
| Cyber Police ESWAT (Prototype B) | Sega Master System | 11 March 2017 08:07:15 | ||
| Cyber Police ESWAT (Prototype C) | Sega Master System | 11 March 2017 08:07:45 | ||
| Cyborg Hunter (Prototype) | Sega Master System | 20 October 2020 | 26 October 2020 23:32:59 | |
| David Robinson's Supreme Court (Prototype) | Game Gear | 29 March 2017 22:04:51 | ||
| Dead Angle (Prototype) | Sega Master System | 9 November 2021 | 23 December 2021 21:41:22 | |
| Defenders of Oasis (Prototype) | Game Gear | 11 March 2017 08:16:35 | ||
| Dinobasher Starring Bignose the Caveman (Game Gear Prototype) | Game Gear | 3 October 2020 16:42:26 | ||
| Dinobasher Starring Bignose the Caveman (Master System Prototype) | Sega Master System | 11 March 2017 08:20:09 | ||
| Doki Doki Penguin Land: Uchuu Daibouken (Prototype) | Sega Master System | 11 March 2017 08:23:31 | ||
| Double Dragon Game Gear (Prototype) | Game Gear | 11 March 2017 08:13:56 | ||
| Double Hawk (Prototype) | Sega Master System | 11 March 2017 08:26:25 | ||
| Dr. Franken (Prototype) | Game Gear | 11 March 2017 08:28:05 | ||
| Dynamite Düx (Prototype) | Sega Master System | 28 December 2021 | 31 December 2021 19:53:10 | |
| Fantasy Zone (REV01 prototype) | Sega Master System | 11 March 2017 08:30:31 | ||
| Fire & Ice (Prototype) | Sega Master System | 11 March 2017 08:32:32 | ||
| Frogger Game Gear (Prototype) | Game Gear | 11 March 2017 08:35:46 | ||
| Gain Ground (Prototype) | Sega Master System | 11 March 2017 08:37:42 | ||
| Ghost House (Prototype) | Sega Master System | 11 March 2017 08:39:51 | ||
| Ghouls 'N Ghosts (prototype) | Sega Master System | 11 March 2017 08:41:55 | ||
| Global Defense (Prototype) | Sega Master System | 11 March 2017 09:05:17 | ||
| Golfamania (Prototype) | Sega Master System | 11 March 2017 19:51:01 | ||
| Great Golf (Prototype) | Sega Master System | 11 March 2017 09:08:26 | ||
| Hang On & Safari Hunt (Prototype) | Sega Master System | 11 March 2017 09:10:46 | ||
| Hang-On (Prototype) | Sega Master System | 28 March 2019 | 30 March 2019 23:52:12 | |
| Hook (Sega Master System Prototype) | Sega Master System | 11 March 2017 09:12:32 | ||
| Impossible Mission (Prototype) | Sega Master System | 11 March 2017 09:15:16 | ||
| Indiana Jones and the Last Crusade (Prototype) | Sega Master System | 11 March 2017 09:18:03 | ||
| James 'Buster' Douglas Knockout Boxing (Prototype) | Sega Master System | 11 March 2017 09:21:09 | ||
| King's Quest: Quest for the Crown (Prototype) | Sega Master System | 11 March 2017 09:24:20 | ||
| Lemmings 2 Game Gear (Prototype) | Game Gear | 11 March 2017 09:26:39 | ||
| Lemmings 2 Sega Master System (Prototype) | Sega Master System | 11 March 2017 09:27:36 | ||
| Lethal Weapon 3 (Prototype) | Sega Master System | 11 March 2017 09:29:14 | ||
| Mahjong Sengoku Jidai (Prototype) | Sega Master System | 11 March 2017 09:37:14 | ||
| Maou Golvellius (Prototype) | Sega Master System | 11 March 2017 09:41:02 | ||
| Micro Machines (Oct 22, 1993 prototype) | 22 October 1993 | Game Gear | 28 March 1993 | 30 March 2019 23:34:49 |
| Miracle Warriors: Seal of the Dark Lord (Prototype) | Sega Master System | 11 March 2017 09:43:23 | ||
| Missle Defense 3-D (Prototype) | Sega Master System | 6 October 2018 13:50:47 | ||
| Monopoly (Sega Master System prototype) | Sega Master System | 11 March 2017 09:45:17 | ||
| Montezuma's Revenge (Prototype) | Sega Master System | 11 March 2017 09:47:03 | ||
| NBA Jam Sega Master System (Prototype) | Sega Master System | 11 March 2017 09:52:10 | ||
| Nazo Puyo: Arle no Roux (Prototype) | Game Gear | 11 March 2017 09:49:33 | ||
| Off the Wall (Jun 28, 1992 prototype) | 28 June 1992 | Game Gear | 23 July 2017 16:10:22 | |
| Off the Wall (Prototype) | TurboGrafx-16 | 23 July 2017 16:14:14 | ||
| Out Run 3-D (Prototype) | Sega Master System | 20 October 2020 | 26 October 2020 23:26:13 | |
| Paperboy 2 (Prototype) | Game Gear | 11 March 2017 09:56:02 | ||
| Pat Riley Basketball Sega Master System (Prototype) | Sega Master System | 11 March 2017 09:59:25 | ||
| Promocao Especial Sega Master System III Compact | Sega Master System | 11 March 2017 10:02:53 | ||
| R-Type (Prototype) | Sega Master System | 11 March 2017 10:09:30 | ||
| R.C. Grand Prix (Prototype) | Sega Master System | 11 March 2017 10:05:58 | ||
| Rampage (SMS Prototype) | Sega Master System | 28 December 2021 | 31 December 2021 19:56:38 | |
| Rastan (Prototype) | Sega Master System | 27 March 2021 | 28 March 2021 16:03:18 | |
| Rayman (SNES prototype) | SNES | 3 July 2017 19:32:00 | ||
| SG-1000 M2 Check Program (Prototype) | SG-1000 | 11 March 2017 17:28:16 | ||
| Sega Game Pack 4 in 1 (Prototype) | Game Gear | 11 March 2017 10:13:06 | ||
| Sega Graphic Board (Aug 25, 1987 prototype) | Sega Master System | 11 March 2017 10:19:27 | ||
| Sega Master System BIOS M404 (Prototype) | Sega Master System | 11 March 2017 17:23:29 | ||
| Sega Master System BIOS v1.0 (Prototype) | Sega Master System | 11 March 2017 17:25:08 | ||
| Sega Master System Color and Switch Test (Prototype) | Sega Master System | 11 March 2017 07:55:09 | ||
| Shanghai (Prototype) | Sega Master System | 11 March 2017 17:30:26 | ||
| Slap Shot (Prototype) | Sega Master System | 11 March 2017 17:32:33 | ||
| Solomon no Kagi: Oujo Rihita no Namida (Prototype) | 1 February 1988 | Sega Master System | 4 August 2018 18:34:12 | |
| Sonic & Tails (Demo) | 14 September 1993 | Game Gear | 11 March 2017 17:42:49 | |
| Sonic Drift (Demo) | Game Gear | 11 March 2017 17:48:44 | ||
| Special Criminal Investigation (Prototype) | Sega Master System | 11 March 2017 17:59:05 | ||
| Spirou (Game Gear prototype) | Game Gear | 11 March 2017 18:06:14 | ||
| Street Battle (Prototype) | Game Gear | 29 March 2017 22:02:04 | ||
| Street Heroes (Prototype A) | Game Gear | 11 March 2017 18:09:40 | ||
| Street Heroes (Prototype B) | Game Gear | 11 March 2017 18:10:20 | ||
| Strider (Prototype) | Sega Master System | 11 March 2017 18:12:26 | ||
| Summer Games (Prototype A) | Sega Master System | 28 December 2021 | 31 December 2021 19:26:29 | |
| Summer Games (Prototype B) | Sega Master System | 11 March 2017 18:22:38 | ||
| Super Basketball (Prototype) | Sega Master System | 11 March 2017 18:24:50 | ||
| Super Golf (Prototype) | Sega Master System | 7 December 2016 22:36:07 | ||
| Super Monaco GP Sega Master System (Prototype A) | Sega Master System | 11 March 2017 18:28:28 | ||
| Super Monaco GP Sega Master System (Prototype B) | Sega Master System | 11 March 2017 18:29:17 | ||
| Super Off Road (Game Gear Prototype) | Game Gear | 29 March 2017 22:06:56 | ||
| Superman (Prototype) | Game Gear | 11 March 2017 18:31:30 | ||
| Taito Chase H.Q. (Prototype) | Sega Master System | 27 March 2021 | 28 March 2021 16:09:59 | |
| Taz-Mania Sega Master System (Prototype) | Sega Master System | 11 March 2017 18:33:44 | ||
| Teddy Boy Blues EPMycard (Prototype) | Sega Master System | 11 March 2017 18:37:26 | ||
| Tengen World Cup Soccer (Prototype) | Game Gear | 27 March 2021 | 28 March 2021 16:14:58 | |
| The A-Team (Prototype) | Sega Master System | 11 March 2017 01:51:35 | ||
| The Cyber Shinobi (Prototype) | Sega Master System | 11 March 2017 08:09:59 | ||
| The Excellent Dizzy Collection (Prototype) | Sega Master System | 11 March 2017 18:42:19 | ||
| The Lucky Dime Caper starring Donald Duck (May 28, 1991 prototype) | 28 May 1991 | Sega Master System | 11 March 2017 09:34:04 | |
| The Smurfs Travel the World (Aug 12, 1996) | 12 August 1996 | Sega Master System | 11 March 2017 17:39:33 | |
| TransBot (Prototype) | Sega Master System | 11 March 2017 18:44:38 | ||
| WildSnake (Gamegear Prototype) | Game Gear | 21 November 2016 22:22:55 | ||
| Wonder Boy in Monster Land (Prototype) | Sega Master System | 11 March 2017 18:50:25 | ||
| World Cup Italia '90 (Prototype) | Sega Master System | 11 March 2017 18:52:54 | ||
| World Games (Prototype) | Sega Master System | 11 March 2017 18:55:19 | ||
| World Grand Prix (Prototype) | Sega Master System | 11 March 2017 18:57:35 | ||
| Yogi Bear in Yogi Bear's Goldrush (Prototype) | Game Gear | 11 March 2017 18:59:20 | ||
| Ys: Ancient Ys Vanished Omen (Prototype) | Sega Master System | 11 March 2017 19:04:38 | ||
| Zaxxon 3D (Prototype) | Sega Master System | 11 March 2017 19:07:32 | ||
| Zillion II: Tri Formation (Prototype) | Sega Master System | 27 March 2021 | 28 March 2021 15:49:37 | |
| Zoop (Game Gear Prototype) | Game Gear | 11 March 2017 19:09:03 |