| Sega Genesis cart. |  Where in the World Is Carmen Sandiego? Model 7161 | 1992 | Electronic Arts CA, USA 14633 |
| Sega Genesis cart. |  Whip Rush Model T-49016 | 1990 | Renovation Products USA |
| Sega Genesis cart. | Wild Snake | 1994 | BPS Bullet-Proof Soft. Japan |
| Sega Genesis cart. | Williams Arcade's Greatest Hits P | 1996 | Williams Ent., Inc. |
| Sega Genesis cart. | Wimbledon Championship Tennis Model 1224 | 1993 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | Wings of Wor Model 6105 | 1991 | Dreamworks Games |
| Sega Genesis cart. | Winter Olympic Games Model T-79096 | 1993 | US Gold, Inc. San Francisco, CA, USA 43175 |
| Sega Genesis cart. | Wisdom Tree - Nes Collection P | 2015 | Piko Interactive LLC |
| Sega Genesis cart. | Wiz'n'Liz Model T-113026 | 1993 | Psygnosis, Ltd. |
| Sega Genesis cart. | Wolfchild Model T-90016 | 1993 | JVC Musical Industries, Inc. |
| Sega Genesis cart. | Wolverine - Adamantium Rage Model T-81416 | 1994 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Sega Genesis cart. | Wonder Boy in Monster World | 1992 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | World Championship Soccer | 1989 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | World Championship Soccer II Model 1233 | 1994 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | World Class Leaderboard Golf Model T-79026 | 1992 | US Gold, Inc. San Francisco, CA, USA 43175 |
| Sega Genesis cart. | World Cup USA 94 Model T-79126 | 1994 | US Gold, Inc. San Francisco, CA, USA 43175 |
| Sega Genesis cart. | World Heroes Model 1547 P | 1994 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | World of Illusion Starring Mickey Mouse and Donald Duck Model 1070 | 1992 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | World Series Baseball '95 Model 1239 | 1995 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | World Series Baseball '96 Model 1242 | 1996 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | World Series Baseball '98 Model 1244 | 1997 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | World Series Baseball Model 1222 | 1994 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | World Trophy Soccer Model T-70116 | 1992 | Virgin Games, Ltd. UK 013715 |
| Sega Genesis cart. | WWF Raw Model T-81316 | 1994 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Sega Genesis cart. | WWF Royal Rumble Model T-81196 | 1994 | Flying Edge |
| Sega Genesis cart. | WWF Super WrestleMania Model T-81086 | 1993 | Flying Edge |
| Sega Genesis cart. | WWF WrestleMania - The Arcade Game Model T-81546 P | 1995 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Sega Genesis cart. | X-Men 2 - Clone Wars Model 1550 | 1994 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | X-Men Model 1057 | 1993 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | X-perts Model 1574 | 1996 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | Yazzie Hb | 2020 | RetroSouls |
| Sega Genesis cart. | Ys III Model 49146 | 1991 | Renovation Products USA |
| Sega Genesis cart. | Zany Golf Model 7011 | 1990 | Electronic Arts CA, USA 14633 |
| Sega Genesis cart. | Zero the Kamikaze Squirrel Model T-15176 | 1994 | SUNSOFT Kounan, Japan |
| Sega Genesis cart. | Zero Tolerance Model T-119146 | 1994 | Accolade, Inc. San Jose, CA, USA 15605 |
| Sega Genesis cart. |  Zombie High | 199? | Electronic Arts CA, USA 14633 |
| Sega Genesis cart. | Zombies Ate My Neighbors Model T-95086 | 1994 | Konami Co., Ltd. Japan |
| Sega Genesis cart. | Zool - Ninja of the Nth Dimension Model T-83096 | 1993 | GameTek, Inc. Miami Beach, FL, USA 43948 |
| Sega Genesis cart. | Zoom! | 1989 | SEGA of America, Inc. San Francisco, CA, USA |
| Sega Genesis cart. | Zoop Model T-139086 | 1995 | Viacom New Media Viacom International, Inc. |
