| Kid Niki - Radical Ninja (US) | |
| Kid Niki - Radical Ninja (World) | |
| Kid no Hore Hore Daisakusen | |
| Kid no Hore Hore Daisakusen (bootleg) [Bootleg] | |
| KiKi KaiKai | |
| Killer Instinct | |
| Killer Instinct (SNES bootleg) | |
| Killer Instinct 2 | |
| King & Balloon (Japan) | |
| King & Balloon (US) | |
| King of Gladiator (The King of Fighters '97 bootleg) [Bootleg] | |
| King of Gladiator Plus (The King of Fighters '97 bootleg) [Bootleg] | |
| King of the Monsters (set 1) | |
| King of the Monsters (set 2) | |
| King of the Monsters 2 - The Next Thing (NGM-039)(NGH-039) | |
| King of the Monsters 2 - The Next Thing (older) | |
| King of the Monsters 2 - The Next Thing (prototype) [Prototype] | |
| Kingdom Grandprix (World) | |
| Kirameki Star Road (Ver 2.10J 1997/08/29) [No sound] | |
| Kitten Kaboodle | |
| Kizuna Encounter - Super Tag Battle / Fu'un Super Tag Battle | |
| Klax (version 6) | |
| Knights of the Round (911127 etc) | |
| Knights of the Round (911127 Japan, B-Board 89625B-1) | |
| Knights of the Round (911127 Japan, B-Board 91634B-2) | |
| Knights of the Round (911127 USA) | |
| Knights of the Round (bootleg set 1 (with YM2151 + 2xMSM5205), 911127 etc) [Bootleg] | |
| Knights of the Round (bootleg set 2, 911127 etc) [Bootleg] | |
| Knights of the Round (bootleg set 3, 911127 Japan) [Bootleg] | |
| Knights of the Round (bootleg set 4 (with YM2151 + 2xMSM5205), 911127 etc) [Bootleg] | |
| Knights of the Round (hack set 1) [Hack] | |
| Knights of the Round (hack set 2, 911127 etc) [Hack] | |
| Knights of Valour - Sangoku Senki (V100, Japan) | |
| Knights of Valour - Sangoku Senki (V111, Japan) | |
| Knights of Valour - Sangoku Senki (V114, Hong Kong) | |
| Knights of Valour - Sangoku Senki (V115) | |
| Knights of Valour - Sangoku Senki (V117) | |
| Knights of Valour 2 (V100, 100, 100, Hong Kong) | |
| Knights of Valour 2 (V101, 101, 100, Hong Kong) | |
| Knights of Valour 2 (V102, 101, 100, Hong Kong) | |
| Knights of Valour 2 (V103, 101, 100, Hong Kong) | |
| Knights of Valour 2 (V106, 102, 100 Hong Kong) | |
| Knights of Valour 2 (V107, 102, 100, Hong Kong) | |
| Knights of Valour 2 Plus - Nine Dragons (VM202XX) | |
| Knights of Valour 2 Plus - Nine Dragons (VM204XX) | |
| Knights of Valour Plus - Sangoku Senki Plus (V119 alt) | |
| Knights of Valour Plus - Sangoku Senki Plus (V119) | |
| Knights of Valour Super Heroes Plus / Sangoku Senki Super Heroes Plus (ver. 100) [Imperfect Protection Emulation] | |
| Knights of Valour Superheroes / Sangoku Senki Superheroes (bootleg, V104, China) | |
| Knights of Valour Superheroes / Sangoku Senki Superheroes (V100) | |