| K-1 Pocket Grand Prix (J)(Nobody) | |
| K-1 Pocket Grand Prix 2 (J)(GBATemp) | |
| Kaeru B Back (J)(Rapid Fire) | |
| Kaiketsu Zorori to Mahou no Yuuenchi (J)(Caravan) | |
| Kamaitachi no Yoru Advance (J)(Independent) | |
| Kami no Kijutsu - Illusion of the Evil Eyes (J)(Rapid Fire) | |
| Kao the Kangaroo (E)(Rocket) | |
| Kao the Kangaroo (U)(Paracox) | |
| Kappa no Kai-Kata - Katan Daibouken (J)(Supplex) | |
| Karnaaj Rally (U)(DCS) | |
| Kashiramoji D - Another Story (J)(Cezar) | |
| Kawa no Nushi Tsuri 3 & 4 (J)(Caravan) | |
| Kawa no Nushi Tsuri 5 (J)(Independent) | |
| Kawaii Koinu Wonderful (J)(Independent) | |
| Kawaii Pet Game Gallery (J)(Rising Sun) | |
| Kawaii Pet Game Gallery 2 (J)(Independent) | |
| Kawaii Pet Shop Monogatari 3 (J)(Chakky) | |
| Kaze no Klonoa 2 G2 - Dream Champ Tournament (J)(Eurasia) | |
| Keitai Denjuu Telefang 2 - Power Version (J)(Rapid Fire) | |
| Keitai Denjuu Telefang 2 - Speed Version (J)(Rapid Fire) | |
| Kelly Slater's Pro Surfer (U)(Mode7) | |
| Keroro Gunsou Taiketsu! Keroro Cart de Arimasu!! (J)(Caravan) | |
| Kessakusen! Ganbare Goemon 1+2 (J)(Supplex) | |
| Kid Paddle (E)(Independent) | |
| St | |
| art Game | |
| Kid's Cards (U)(Trashman) | |
| Kidou Senshi Gundam Seed Destiny (J)(Caravan) | |
| Kikaika Gunta - Mech Platoon (J)(Independent) | |
| Kiki Kaikai Advance (J)(Eurasia) | |
| Kill.Switch (E)(Rising Sun) | |
| Kill.Switch (U)(Venom) | |
| Killer 3D Pool (E)(Endless Piracy) | |
| Killer 3D Pool (U)(RivalRoms) | |
| Kim Possible 2 - Drakken's Demise (E)(Rising Sun) | |
| King Kong (E)(Rising Sun) | |
| Kingdom Hearts - Chain of Memories (E)(Eternity) | |
| Kingdom Hearts - Chain of Memories (J)(Caravan) | |
| Kingdom Hearts - Chain of Memories (U)(Venom) | |
| Kinniku Banduke - Muscle Ranking 2 (J)(Independent) | |
| Kinnnikuman Nisei Seigi Choujin he no Michi (J)(Polla) | |
| Kirby - Nightmare in Dreamland (E)(Surplus) | |
| Kirby - Nightmare in Dreamland (U)(Mode7) | |
| Kirby & The Amazing Mirror - Oops! All Mix! | |
| Kirby & the Amazing Mirror (Proto) | |
| Kirby And The Amazing Mirror (E)(Rising Sun) | |
| Kirby And The Amazing Mirror (U)(Rising Sun) | |
| Kirby in Sonic battle! | |
| Kirby Red Diamond | |
| Kisekae Angel (J)(Caravan) | |
| Kisekko Gurumi (J)(Mugs) | |
| Kiss x Kiss Seirei Gakuen (J)(Caravan) | |