| Nintendo 3DS cart. |  Inazuma Eleven Go - Light Model CTR-AE4P-EUR | 201? | Nintendo Co., Ltd. Japan |
| Nintendo 3DS cart. | Inazuma Eleven Go - Shadow Model CTR-AEDP-EUR | 201? | Nintendo Co., Ltd. Japan |
| Nintendo NES cart. | Isolated Warrior | 1991 | Nintendo Co., Ltd. Japan |
| Nintendo NES cart. | Isolated Warrior Model NES-W6-FRA | 1991 | Nintendo Co., Ltd. Japan |
| Nintendo Switch cart. |  Issho ni Chokitto Snippers Plus Model LA-H-AEXYA-JPN | 2017 | Nintendo Co., Ltd. Japan |
| Nintendo 64 cart. | Itoi Shigesato no Bass Tsuri No. 1 Kettei Ban! Model NUS-NIBJ | 2000 | Nintendo Co., Ltd. Japan |
| Nintendo Super Famicom cart. | Itoi Shigesato no Bass Tsuri No. 1 Model SHVC-ZBPJ-JPN | 1997 | Nintendo Co., Ltd. Japan |
| Nintendo NES cart. | Ivan 'Ironman' Stewart's Super Off Road Model NES-WU-EEC | 1991 | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Cart. | James Bond 007 Model DMG-AW7E-USA-1 | 1998 | Nintendo Co., Ltd. Japan |
| Nintendo 64 cart. | Jet Force Gemini | 1999 | Nintendo Co., Ltd. Japan |
| Nintendo Famicom cart. | Joy Mech Fight Model HVC-JM | 1993 | Nintendo Co., Ltd. Japan |
| Handheld game | Judge Model IP-05 | 1980 | Nintendo Co., Ltd. Japan |
| Nintendo DS cart. | Jump Superstars Model NTR-AJSJ-JPN | 2005 | Nintendo Co., Ltd. Japan |
| Nintendo Wii disc | Just Dance Wii 2 | 2012 | Nintendo Co., Ltd. Japan |
| Nintendo Wii disc | Just Dance Wii Model RVL-SD2J-JPN | 2011 | Nintendo Co., Ltd. Japan |
| Nintendo NES cart. | Kabuki - Quantum Fighter | 1991 | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Kaeru no Tame ni Kane wa Naru Model DMG-OKJ | 1992 | Nintendo Co., Ltd. Japan |
| Nintendo Famicom disk | Kaettekita Mario Bros. Model FMC-KMAR | 1988 | Nintendo Co., Ltd. Japan |
| Nintendo DS cart. | Kahashima Ryuuta Kyouju no Nou wo Kitaeru Otona no DS Training for Adults | 2005 | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Color cart. | Kakurenbo Battle Monster Tactics Model CGB-BMF-JPN | 2000 | Nintendo Co., Ltd. Japan |
| Nintendo 3DS cart. | KasekiHorider - MugenGear Model CTR-AHRJ-JPN | 201? | Nintendo Co., Ltd. Japan |
| Nintendo 3DS cart. | Katachi Shin Hakken! Rittai Picross 2 Model CTR-BBPJ-JPN | 201? | Nintendo Co., Ltd. Japan |
| Nintendo Wii disc | Keito no Kirby | 2010 | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Ken Griffey Jr. presents Major League Baseball Model DMG-AKGP-AUS | 1997 | Nintendo Co., Ltd. Japan |
| Nintendo 64 cart. | Ken Griffey Jr.'s Slugfest | 1999 | Nintendo Co., Ltd. Japan |
| Nintendo NES cart. | Kickle Cubicle | 1991 | Nintendo Co., Ltd. Japan |
| Nintendo 3DS cart. | Kid Icarus - Uprising Model CTR-AKDP-EUR | 201? | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Kid Icarus of Myths and Monsters Model DMG-KA-UKV | 1991 | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Killer Instinct Model DMG-AKLP-UKV | 1995 | Nintendo Co., Ltd. Japan |
| Nintendo Super NES cart. | Killer Instinct Model SNSP-AKLP-FRG | 1995 | Nintendo Co., Ltd. Japan |
| Nintendo GBA cart. | Kirby & the Amazing Mirror Model AGB-B8KP | 2004 | Nintendo Co., Ltd. Japan |
| Adobe Flash game | Kirby - Nightmare in Dream Land Kirby-Mini-Spiel | 200? | Nintendo Co., Ltd. Japan |
| Nintendo GBA cart. | Kirby - Nightmare in Dream Land Model AGB-A7KP | 2003 | Nintendo Co., Ltd. Japan |
| Nintendo GameCube disc | Kirby Air Ride Model DOL-GKYP-EUR | 2004 | Nintendo Co., Ltd. Japan |
| Nintendo Super Famicom cart. | Kirby Bowl Model SHVC-CG | 1994 | Nintendo Co., Ltd. Japan |
| Nintendo 3DS cart. | Kirby Fighters Deluxe Model CTR-JVXP-EUR | 201? | Nintendo Co., Ltd. Japan |
| Nintendo GameCube disc | Kirby no Airride Model DOL-GKYJ-JPN | 2003 | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Kirby no Block Ball Model DMG-AKXJ-JPN | 1995 | Nintendo Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Kirby no Kirakira Kids Model DMG-AKCJ-JPN | 1997 | Nintendo Co., Ltd. Japan |
| Nintendo Super Famicom cart. | Kirby no Kirakira Kids Model SHVC-BKKJ-JPN | 1998 | Nintendo Co., Ltd. Japan |
