| 11 Hap Gam-Boy | KR | |
| Unlicensed |
| 128 Hap | KR | |
| Unlicensed |
| 2 Hap in 1 - Moai-ui Bomul + David II | KR | |
| Unlicensed |
| 20 em 1 | BR | 1995 |
Tec Toy | Commercial |
| 2048 | WORLD | 2014 |
| Unlicensed |
| 2048-SMS! | WORLD | |
| Unlicensed |
| 3 in 1 - The Best Game Collection | KR | |
| Unlicensed |
| 3D Alien Maze | WORLD | |
| Unlicensed |
| 3D City | WORLD | |
| Unlicensed |
| 3D Gunner | US | |
Sega | Prototype |
| 4 PAK All Action | AU | 1995 |
Home Entertainment Suppliers | Unlicensed |
| 8 in 1 - The Best Game Collection | KR | |
| Unlicensed |
| 94 Super World Cup Soccer | KR | 1994-06 |
Daou Infosys | Unlicensed |
| 94-Nen Super Basketball | TW | 1987-03 |
Sega | Unlicensed |
| Ace of Aces | BR | 1991 |
Sega | Commercial |
| Ace of Aces | EU | 1991 |
Sega | Commercial |
| Acerte o Alvo | BR | 2007 |
Tec Toy | Commercial |
| Acid Reflux | WORLD | |
| Unlicensed |
| Action Boy | TW | 1986-01 |
Sega | Unlicensed |
| Action Fighter | BR | 1986-08 |
Sega | Commercial |
| Action Fighter | EU | 1987-08 |
Sega | Commercial |
| Action Fighter | EU | 1987-08 |
Sega | Prototype |
| Action Fighter | JP | 1986-08-17 |
Sega | Commercial |
| Action Fighter | JP | 1986-08-17 |
Sega | Prototype |
| Action Fighter | TW | 1986-08 |
Sega | Unlicensed |
| Action Fighter | US | 1986-11 |
Sega | Commercial |
| Aerial | WORLD | |
| Unlicensed |
| Aerial Assault | BR | 1990-07 |
Sega | Commercial |
| Aerial Assault | EU | 1990-07 |
Sega | Commercial |
| Aerial Assault | TW | 1990-07 |
Sega | Unlicensed |
| Aerial Assault | US | 1990-07 |
Sega | Commercial |
| Africa | WORLD | |
| Unlicensed |
| After Burner | WORLD | 1987-12-12 |
Sega | Commercial |
| Agigongnyong Dooly | KR | 1991-01 |
Innovation | Unlicensed |
| Air Rescue | BR | 1992-07 |
Sega | Commercial |
| Air Rescue | EU | 1992-07 |
Sega | Commercial |
| Aladdin | BR | 1994-03 |
Sega | Commercial |
| Aladdin | EU | 1994-03-30 |
Sega | Commercial |
| Aleste | JP | 1988-02-29 |
Sega | Commercial |
| Alex Kidd - High-Tech World | BR | 1989 |
Sega | Commercial |
| Alex Kidd - High-Tech World | BR | 1989 |
Sega | Prototype |
| Alex Kidd - High-Tech World | EU | 1989 |
Sega | Commercial |
| Alex Kidd - High-Tech World | EU | 1989 |
Sega | Prototype |
| Alex Kidd - High-Tech World | US | 1989-06 |
Sega | Commercial |
| Alex Kidd - High-Tech World | US | 1989-06 |
Sega | Prototype |
| Alex Kidd - The Lost Stars | WORLD | 1988-03-10 |
Sega | Commercial |
| Alex Kidd 3 - Curse in Miracle World | WORLD | 2021-02 |
Yeti | Unlicensed |
| Alex Kidd in Miracle World | BR | 1986-11 |
Sega | Commercial |
| Alex Kidd in Miracle World | EU | 1987 |
Sega | Commercial |
| Alex Kidd in Miracle World | US | 1986-12 |
Sega | Commercial |
| Alex Kidd in Miracle World | WORLD | 1986-11-01 |
Sega | Commercial |
| Alex Kidd in Miracle World 2 | WORLD | 2017-05 |
Ian Wall | Unlicensed |
| Alex Kidd in Shinobi World | BR | 1990 |
Sega | Commercial |
| Alex Kidd in Shinobi World | EU | 1990 |
Sega | Commercial |
| Alex Kidd in Shinobi World | US | 1990 |
Sega | Commercial |
| Alex Kidd no Miracle World | JP | 1986-11 |
Sega | Commercial |
| Alex Kidd no Miracle World | TW | 1986-11-01 |
Sega | Unlicensed |
| Alex Kido | TW | 1986-11 |
Sega | Unlicensed |
| Alf | US | 1989-05 |
Sega | Commercial |
| Alibaba and 40 Thieves | KR | 1989 |
HiCom | Unlicensed |
| Alien 3 | BR | 1992-10 |
Arena Entertainment | Commercial |
| Alien 3 | EU | 1992-10-21 |
Arena Entertainment | Commercial |
| Alien Cat 2 | WORLD | 2025-11 |
PSCD Games | Unlicensed |
| Alien Storm | BR | 1991-12 |
Sega | Commercial |
| Alien Storm | EU | 1991-12 |
Sega | Commercial |
| Alien Syndrome | BR | 1987-10 |
Sega | Commercial |
| Alien Syndrome | BR | 1987-10 |
Sega | Prototype |
| Alien Syndrome | EU | 1988-03 |
Sega | Commercial |
| Alien Syndrome | EU | 1988-03 |
Sega | Prototype |
| Alien Syndrome | JP | 1987-10-18 |
Sega | Commercial |
| Alien Syndrome | US | 1988-03 |
Sega | Commercial |
| Alien Syndrome | US | 1988-03 |
Sega | Prototype |
| Alocos | TW | 1988-03 |
Salio | Unlicensed |
| Alter Ego | WORLD | 2024-03 |
Kusfo | Unlicensed |
| Altered Beast | BR | 1989-06 |
Sega | Commercial |
| Altered Beast | EU | 1989-06 |
Sega | Commercial |
| Altered Beast | TW | 1989-06 |
Sega | Unlicensed |
| Altered Beast | US | 1989-06 |
Sega | Commercial |
| American Baseball | BR | 1989-03 |
Sega | Commercial |
| American Baseball | EU | 1989-08 |
Sega | Commercial |
| American Pro Football | EU | 1989-09 |
Sega | Commercial |
| Andre Agassi Tennis | BR | 1993-06 |
TecMagik | Commercial |
| Andre Agassi Tennis | EU | 1993-06 |
TecMagik | Commercial |
| Anguna - The Prison Dungeon | WORLD | |
| Prototype |
| Anmitsu Hime | JP | 1987-07-19 |
Sega | Commercial |
| AntiISDA Warrior | WORLD | |
| Unlicensed |
| Antiair | WORLD | |
| Unlicensed |
| Ants for Master System | WORLD | |
| Unlicensed |
| Arcade Smash Hits | EU | 1992-08 |
Atari | Commercial |
| Arcade Volleyball | WORLD | 2021 |
raphnet | Unlicensed |
| Argos no Juujiken | JP | 1988-03-25 |
Salio | Commercial |
| Ariel - The Little Mermaid | BR | 1993 |
Tec Toy | Commercial |
| Arno Dash | WORLD | |
| Unlicensed |
| Arno Dash 2 | WORLD | 2021-03 |
Under4Mhz | Unlicensed |
| Artfull | WORLD | |
| Unlicensed |
| Artillery Master 8k | WORLD | |
| Prototype |
| Ascend | WORLD | |
| Unlicensed |
| Ashura | JP | 1986-11-16 |
Sega | Commercial |
| Ashura | TW | 1986-11-16 |
Sega | Unlicensed |
| Assault City | BR | 1990-01 |
Sega | Commercial |