| Nintendo Game Boy Cart. |  Higashio Osamu Kanshuu Pro Yakyuu Stadium '91 Model DMG-PIJ | 1991 | Tokuma Shoten Intermedia, Inc. Japan |
| Nintendo Game Boy Cart. |  Home Alone Model DMG-HM-NOE | 1991 | T-HQ, Inc. Toy HeadQuarters |
| Nintendo Game Boy Cart. | Home Alone Model DMG-HM-UKV | 1991 | T-HQ, Inc. Toy HeadQuarters |
| Nintendo Game Boy Cart. | Home Alone Model DMG-HM-USA | 1991 | T-HQ, Inc. Toy HeadQuarters |
| Nintendo Game Boy Cart. | Hudson Hawk Model DMG-HW-USA | 1991 | Sony Imagesoft |
| Nintendo Game Boy Cart. | Hyper Dunk Model DMG-DW-NOE | 1991 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Ikari no Yousai Model DMG-IYJ | 1991 | JALECO Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Ippatsu Gyakuten! DX Bakenou Model DMG-BHJ | 1991 | Asmik Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Jankenman Model DMG-JAJ | 1991 | NCS Corp. Nippon Computer Systems Japan |
| Nintendo Game Boy Cart. | Jelly Boy Model DMG-AJBP-UKV | 1991 | Ocean Soft., Ltd. 13156 |
| Nintendo Game Boy Cart. | Jeopardy! Model DMG-JP-USA | 1991 | GameTek, Inc. Miami Beach, FL, USA 43948 |
| Nintendo Game Boy Cart. |  Jet Pak Jak | 1991 | Unknown |
| Nintendo Game Boy Cart. | Jet Pak Man | 1991 | Unknown |
| Nintendo Game Boy Cart. | Jetpack | 1991 | JALECO Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Jikuu Senki Mu Model DMG-H1J | 1991 | Hudson Soft. Hudson Group Japan |
| Nintendo Game Boy Cart. | Jinsei Game Densetsu Model DMG-JGJ | 1991 | Takara Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Jungle Wars Model DMG-JWJ | 1991 | Pony Canyon, Inc. Japan |
| Nintendo Game Boy Cart. | Karakuri Kengouden Musashi Road Model DMG-MUJ | 1991 | Yutaka |
| Nintendo Game Boy Cart. | Kid Icarus of Myths and Monsters Model DMG-KA-UKV | 1991 | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Kid Icarus of Myths and Monsters Model DMG-KA-USA | 1991 | Nintendo of America, Inc. USA 45496 |
| Nintendo Game Boy Cart. | Kingyo Chuuihou Wapiko no Wakuwaku Stamp Rally! Model DMG-KTJ | 1991 | Yutaka |
| Nintendo Game Boy Cart. | Kitchen Panic Model DMG-KPJ | 1991 | Coconuts Japan |
| Nintendo Game Boy Cart. | Klax Model DMG-KX-USA | 1991 | Mindscape, Inc. Northbrook, IL, USA 24294 |
| Nintendo Game Boy Cart. | Knight Quest Model DMG-FWJ | 1991 | Taito Corp. Japan |
| Nintendo Game Boy Cart. | Koi wa Kakehiki Model DMG-KIJ | 1991 | Pony Canyon, Inc. Japan |
| Nintendo Game Boy Cart. | Konamic Basket Model DMG-DWJ | 1991 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Konamic Golf Model DMG-KGA | 1991 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Kung-Fu Master Model DMG-SX-NOE | 1991 | Irem Corp. Japan |
| Nintendo Game Boy Cart. | Kung-Fu Master Model DMG-SX-USA | 1991 | Irem Corp. Japan |
| Nintendo Game Boy Cart. | Legend - Asu e no Tsubasa Model DMG-LGJ | 1991 | Quest |
| Nintendo Game Boy Cart. | Litti's Summer Sports Model DMG-TM-NOE | 1991 | Interplay |
| Nintendo Game Boy Cart. | Little Master - Raikuban no Densetsu Model DMG-LAJ | 1991 | Tokuma Shoten Intermedia, Inc. Japan |
| Nintendo Game Boy Cart. | Loopz Model DMG-LP-NOE | 1991 | Mindscape GmbH Kaarst, Deutschland |
| Nintendo Game Boy Cart. | Loopz Model DMG-LP-USA | 1991 | Mindscape, Inc. Northbrook, IL, USA 24294 |
| Nintendo Game Boy Cart. | Loopz Model DMG-LPA | 1991 | Mindscape, Inc. Northbrook, IL, USA 24294 |
| Nintendo Game Boy Cart. | Lucky Monkey Model DMG-LMJ | 1991 | Natsume, Inc. Japan |
| Nintendo Game Boy Cart. | Magical Taruruuto-kun Model DMG-MGJ | 1991 | Bandai Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Marble Madness Model DMG-MB-USA | 1991 | Mindscape, Inc. Northbrook, IL, USA 24294 |
| Nintendo Game Boy Cart. | Maru's Mission Model DMG-OJ-USA | 1991 | JALECO USA, Inc. USA |
| Nintendo Game Boy Cart. | Mega Man - Dr. Wily's Revenge Model DMG-RW-EUR | 1991 | Nintendo of Europe GmbH 45496 |
