NES

Joe _ MacUSA · 36 codes

Joe _ Mac - Caveman NinjaEUR · 5 codes

John Elway's QuarterbackUSA · 2 codes

John Smith Special Agent · 8 codes

Jordan vs Bird - One on OneUSA · 6 codes

Journey to SiliusUSA · 56 codes

Journey to Silius (USA, Europe) · 34 codes

JoustUSA · 15 codes

Joust (USA, Japan) · 6 codes

Jungle Book, TheUSA · 35 codes

Jungle Book, The (USA, Europe) · 19 codes

Jurassic ParkUSA · 33 codes

Jurassic Park (USA, Europe) · 8 codes

Jurassic Park- The Lost World · 2 codes

Kabuki - Quantum FighterUSA · 32 codes

Kabuki - Quantum Fighter (Rumbles) · 2 codes

Kabuki - Quantum Fighter (USA, Europe) · 15 codes

Karate ChampUSA · 10 codes

Karate Kid, TheUSA · 43 codes

KarnovUSA · 39 codes

Karnov (USA, Japan) · 28 codes

Kick MasterUSA · 14 codes

Kickle CubicleUSA · 35 codes

Kickle Cubicle (USA, Europe) · 7 codes

KickMasterUSA · 34 codes

Kid Icarus (Rumbles) · 2 codes

Kid Icarus (USA, Europe) · 145 codes

Kid Klown in Night Mayor WorldUSA · 29 codes

Kid Kool and the Quest for the Seven Wonder HerbsUSA · 37 codes

Kid Niki - Radical NinjaUSA · 35 codes

Kid Niki - Radical Ninja (diff)USA · 6 codes

King's KnightUSA · 11 codes

King's Knight (USA, Japan) · 7 codes

Kings of the Beach - Professional Beach VolleyballUSA · 10 codes

Kirby's AdventureEUR · 79 codes

Kirby's Adventure (USA, Europe) · 12 codes

Kiwi Kraze - A Bird-Brained Adventure!USA · 48 codes

KlashBallUSA · 12 codes

Klax (USA, Japan) · 7 codes

Knight RiderUSA · 45 codes

Konami Hyper SoccerEUR · 1 codes

Krion Conquest, TheUSA · 31 codes

Krusty's Fun HouseUSA · 20 codes

Krusty's Fun House (USA, Europe) · 8 codes

Kung FuEUR · 18 codes

Kung Fu (Japan, USA) · 30 codes

Kung Fu (Rumbles) · 2 codes

Kung-Fu HeroesUSA · 44 codes