NES - K
- Kabuki Quantum Fighter
- Karaoke Studio
- Karate Champ
- Karnov
- Kero Kero Keroppi no Daibouken 2 - Donuts Ike ha Oosawagi!
- Kickle Cubicle
- Kickmaster
- Kid Icarus
- Kid Icarus - of Myths and Monsters
- Kid Klown
- Kid Klown in Night Mayor World
- Kid Kool
- Kid Niki - Radical Ninja
- King Neptune's Adventure
- King's Knight
- King's Quest 5
- Kings of the Beach
- Kirby's Adventure
- Kirbys Adventure
- Kitty's Catch
- Kiwi Crazy
- Klax
- Knight Rider
- Koufuku o Yobu Game - Dora Dora Dora
- Krazy Kreatures
- Krusty's Fun House
- Kung Fu
- Kung Fu Heroes
- Kunio-Kun no Nekketsu Soccer League
- Kyatto Ninden Teyandee
- Kyonshees 2
- Kyuukyoku Harikiri Koushien