| Sega Genesis cart. |  2 in 1: Funny World + Balloon Boy Model 22015 | 1993 | Realtec Corp. |
| Sega Genesis cart. | 2020 Super Baseball Model 7158 P | 1994 | Electronic Arts CA, USA 14633 |
| Sega Genesis cart. | 3 Ninjas Kick Back Model T-113076 | 1994 | Sony Imagesoft |
| Sega Genesis cart. | 6-Pak Model 1717 | 1995 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | 688 Attack Sub Model MK-1401 | 1991 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | A Dinosaur's Tale Model T-112036 | 1993 | Hi-Tech Expressions, Inc. |
| Sega Genesis cart. | Aaahh!!! Real Monsters Model T-139066 | 1995 | Viacom New Media Viacom International, Inc. |
| Sega Genesis cart. | Aero the Acro-Bat 2 Model T-15166 | 1994 | SUNSOFT Sun Corp. of America IL, USA |
| Sega Genesis cart. | Aero the Acro-Bat Model T-15056 | 1993 | SUNSOFT Sun Corp. of America IL, USA |
| Sega Genesis cart. |  Aerobiz Supersonic Model T-76136 | 1994 | KOEI Corp. CA, USA |
| Sega Genesis cart. | Aerobiz Model T-76046 | 1992 | KOEI Corp. CA, USA |
| Sega Genesis cart. |  Affinity Sorrow demo | 2021 | Second Dimension |
| Sega Genesis cart. | After Burner II Model 1104 | 1990 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | Air Buster - Trouble Specialty Raid Unit Model T-33026 | 1991 | Kaneko USA, Ltd. IL, USA |
| Sega Genesis cart. | Air Diver Model T-35026 | 1990 | Seismic, Inc. Santa Clara, CA, USA |
| Sega Genesis cart. |  Akira | 1994 | Black Pearl |
| Sega Genesis cart. | Alex Kidd in the Enchanted Castle Model 1005 | 1989 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | Alien Cat 2 Hb | 2020 | PSCD Games |
| Sega Genesis cart. | Alien Cat 2 demo | 2020 | PSCD Games |
| Sega Genesis cart. | Alien Storm Model 1121 P | 1991 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | Alien³ Model T-81096 | 1992 | Arena Ent. |
| Sega Genesis cart. | Alisia Dragoon Model 1039 | 1992 | Game Arts Co., Ltd. Japan |
| Sega Genesis cart. | Alter Ego - Remastered Hb | 2020 | RetroSouls |
| Sega Genesis cart. | Altered Beast Model 1100 | 1989 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | American Gladiators Model T-83056 | 1992 | GameTek, Inc. Miami Beach, FL, USA 43948 |
| Sega Genesis cart. | Andre AGASSI Tennis Model T-101016 | 1992 | TecMagik Ent., Ltd. |
| Sega Genesis cart. | Animaniacs Model T-95176 | 1994 | Konami Co., Ltd. Japan |
| Sega Genesis cart. | Arcade Classics Model MK-1715 | 1996 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | Arch Rivals - The Arcade Game Model T-81056 P | 1992 | Flying Edge |
| Sega Genesis cart. | Arcus Odyssey Model T-49096 | 1991 | Renovation Products USA |
| Sega Genesis cart. | Arkagis Escape - trial version | 2023 | Sik |
| Sega Genesis cart. | Arkagis Revolution Hb | 2020 | Broke Studio |
| Sega Genesis cart. | Arkagis Revolution - trial version | 2019 | Sik |
| Sega Genesis cart. | Arnold Palmer Tournament Golf Model 1203 | 1989 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | Arrow Flash Model 49046 | 1990 | Renovation Products USA |
| Sega Genesis cart. | Art Alive Model 1703 | 1991 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | Art of Fighting Model 1146 | 1994 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | Astebros Hb | 2023 | Neofid Studios |
| Sega Genesis cart. | Astebros demo | 2022 | Neofid Studios |
| Sega Genesis cart. | Astérix and the Great Rescue Model 1532 | 1994 | SEGA of America, Inc. San Francisco, CA, USA |
