| Nintendo Game Boy Cart. |  Kirby's Dream Land Model DMG-KY-USA | 1992 | Nintendo of America, Inc. USA 45496 |
| Nintendo Game Boy Cart. |  Kirby's Pinball Land Model DMG-K9-NOE | 1993 | Nintendo of Europe GmbH 45496 |
| Nintendo Game Boy Cart. | Kirby's Pinball Land Model DMG-K9-UKV | 1993 | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Kirby's Pinball Land Model DMG-K9-USA | 1993 | Nintendo of America, Inc. USA 45496 |
| Nintendo Game Boy Cart. | Kirby's Star Stacker Model DMG-AKCE-USA | 1997 | Nintendo of America, Inc. USA 45496 |
| Nintendo Game Boy Cart. | Kirby's Star Stacker Model DMG-AKCP-AUS | 1997 | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Kirby's Star Stacker Model DMG-AKCP-EUR | 1997 | Nintendo of Europe GmbH 45496 |
| Nintendo Game Boy Cart. | Kitchen Panic Model DMG-KPJ | 1991 | Coconuts Japan |
| Nintendo Game Boy Cart. | Kiteretsu Daihyakka - Bouken Ooedo Juraki Model DMG-VIJ | 1994 | Video System Co., Ltd. Kyoto, Japan |
| Nintendo Game Boy Cart. | Kizuchida Quiz da Gen-san da! Model DMG-QGJ | 1992 | Irem Corp. Japan |
| Nintendo Game Boy Cart. | Klax Model DMG-KLA | 1990 | Hudson Soft. Hudson Group 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-FW-USA | 1992 | Taito America Corp. Elk Grove Village, IL, USA |
| 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. | Konami GB Collection Vol.1 Model DMG-AJIJ-JPN | 1997 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Konami GB Collection Vol.2 Model DMG-AJJJ-JPN | 1997 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Konami GB Collection Vol.3 Model DMG-AJKJ-JPN | 1998 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Konami GB Collection Vol.4 Model DMG-AJLJ-JPN | 1998 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Konami Golf Model DMG-KG-UKV | 1994 | Konami Co., Ltd. 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. | Konamic Ice Hockey Model DMG-UBJ | 1992 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Konamic Sports in Barcelona Model DMG-KHJ | 1992 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Konchuu Hakase Model DMG-AKJJ-JPN | 1998 | J-Wing |
| Nintendo Game Boy Cart. | Koro Dice Model DMG-KKA | 1990 | King Records Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Koukiatsu Boy Model DMG-AKEJ-JPN | 1998 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Krusty World Model DMG-FKJ | 1994 | Acclaim Japan |
| Nintendo Game Boy Cart. | Krusty's Fun House Model DMG-FK-NOE | 1993 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Nintendo Game Boy Cart. | Krusty's Fun House Model DMG-FK-USA | 1993 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Nintendo Game Boy Cart. | Kuma no Puutarou - Takara Sagashi da Ooiri Game Battle! Model DMG-AKPJ-JPN | 1996 | Takara 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. | Kunio-kun no Jidaigeki dayo Zenin Shuugou! Model DMG-JXJ | 1993 | Technos Japan Corp. Japan |
| Nintendo Game Boy Cart. | Kuusou Kagaku Sekai Gulliver Boy - Kuusou Kagaku Puzzle Purittopon!! Model DMG-AGBJ-JPN | 1995 | Bandai Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Kwirk Model DMG-AP-UKV | 1990 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Nintendo Game Boy Cart. | Kwirk Model DMG-AP-USA | 1990 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Nintendo Game Boy Cart. | Kyoro-chan Land Model DMG-CJJ | 1992 | Hiro Co., Ltd. Japan |
| Nintendo Game Boy Cart. | La Sa Ma Chuan Qi - Story of Lasama Model GS-04 | 19?? | GYY Taiwan |
| Nintendo Game Boy Cart. | Lamborghini - American Challenge Model DMG-L7-FRG | 1993 | Titus Gagny, France |
