| Game Name | System |
|---|
| Jungle Japes (MPU4?) (set 1) | MAME |
| Jungle Japes (MPU4?) (set 2) | MAME |
| Jungle Japes (MPU4?) (set 3) | MAME |
| Jungle Japes (MPU4?) (set 4) | MAME |
| Jungle Jive (Astra, V004) | MAME |
| Jungle Jive (Astra, V005) | MAME |
| Jungle Jive (Astra, V101) | MAME |
| Jungle Jive (Astra, V101, alt) | MAME |
| Jungle Jive (Astra, V102) | MAME |
| Jungle Jive (Astra, V104) | MAME |
| Jungle Jive (Astra, V106) | MAME |
| Jungle Jive (Astra, V107) | MAME |
| Jungle Juice (0200240V, New Zealand) | MAME |
| Jungle King (Japan) | MAME |
| Jungle King (Japan, earlier) | MAME |
| Jungle King (alternate sound) | MAME |
| Jungle Lord (L-1) | MAME |
| Jungle Lord (L-2) | MAME |
| Jungler | MAME |
| Jungler (Gakken) | MAME |
| Jungler (Stern Electronics) | MAME |
| Jungler (Subelectro, bootleg on Scramble hardware) | MAME |
| Junior Computer | MAME |
| Junk Yard (0.3) | MAME |
| Junk Yard (1.1) | MAME |
| Junk Yard (1.2) | MAME |
| Juno First | MAME |
| Juno First (Gottlieb) | MAME |
| Jupiter Ace | MAME |
| Jupiter II | MAME |
| Jupiter III | MAME |
| Jurassic Park (5.01 Germany) | MAME |
| Jurassic Park (5.01) | MAME |
| Jurassic Park (5.13) | MAME |
| Jurassic Park (Japan, Deluxe) | MAME |
| Jurassic Park (Japan, Rev A, Conversion) | MAME |
| Jurassic Park (Japan, Rev A, Deluxe) | MAME |
| Jurassic Park (World) | MAME |
| Jurassic Park 3 (ver EBC) | MAME |
| Jurassic Park 3 (ver UA) | MAME |
| Jurassic Trail (Ace) (sp.ACE) | MAME |
| Just The Job (Global) (M1A/B) (set 1) | MAME |
| Just The Job (Global) (M1A/B) (set 2) | MAME |
| Just The Job (Global) (M1A/B) (set 3) | MAME |
| Just The Job (Global) (M1A/B) (set 4) | MAME |
| Just The Job (Global) (M1A/B) (set 5) | MAME |
| Just The Job (Global) (M1A/B) (set 6) | MAME |
| Just The Ticket (Maygay) (EPOCH) (3.4, set 4) | MAME |
| Just The Ticket (Maygay) (EPOCH) (3.5, set 3) | MAME |
| Just The Ticket (Maygay) (EPOCH) (3.5, set 5) | MAME |
| Just The Ticket (Maygay) (EPOCH) (3.5, set 6) | MAME |
| Just The Ticket (Maygay) (EPOCH) (3.6, set 7) | MAME |
| Just The Ticket (Maygay) (EPOCH) (3.6, set 8) | MAME |
| Just The Ticket (Maygay) (EPOCH) (4.2, set 1) | MAME |
| Just The Ticket (Maygay) (EPOCH) (4.2, set 2) | MAME |
| Juuouki (set 1, Japan) (FD1094 317-0065) | MAME |
| Juuouki (set 3, Japan) (FD1094 317-0068) | MAME |
| Juuouki (set 3, Japan) (bootleg of FD1094 317-0068 set) | MAME |
| Juuouki (set 7, Japan) (8751 317-0077) | MAME |
| Jyangokushi: Haoh no Saihai (Japan 990527) | MAME |
| K.G. Bird (0200024V, NSW/ACT) | MAME |
| K.G. Bird (4VXFC5341, New Zealand, 10c) | MAME |
| K.G. Bird (4VXFC5341, New Zealand, 5c) | MAME |
| K1003 | MAME |
| K28: Talking Learning Computer (model 7-230) | MAME |
| K28: Talking Learning Computer (model 7-232) | MAME |
| K8915 | MAME |
| KC 85/1.11 | MAME |
| KC 85/3 | MAME |
| KC 85/4 | MAME |
| KC 85/5 | MAME |
| KC 87.10 | MAME |
| KC 87.11 | MAME |
| KC 87.20 | MAME |
| KC 87.21 | MAME |
| KC Compact | MAME |
| KIM-1 | MAME |
| KMC-5000 (MSX2) | MAME |
| KO Punch | MAME |
| KONTIKI 100 | MAME |
| KR-03 | MAME |
| KT-76 | MAME |
| KZ-26 | MAME |
| Kabuki-Z (Japan) | MAME |
| Kabuki-Z (World) | MAME |
| Kageki (Japan) | MAME |
| Kageki (US) | MAME |
| Kageki (hack) | MAME |
| Kaiketsu Yanchamaru (Japan) | MAME |
| Kaiser Knuckle (Ver 2.1J 1994/07/29) | MAME |
| Kaiser Knuckle (Ver 2.1O 1994/07/29) | MAME |
| Kaitei Daisensou (Japan) | MAME |
| Kaitei Takara Sagashi | MAME |
| Kaitei Takara Sagashi (Namco license) | MAME |
| Kaiun Quiz (Japan, KW1/VER.A) | MAME |
| Kaleidoscope (011) (Qps) (Scorpion 4) (set 1) | MAME |
| Kaleidoscope (011) (Qps) (Scorpion 4) (set 3) | MAME |
| Kaleidoscope (041) (Qps) (Scorpion 4) (set 2) | MAME |
| Kaleidoscope (041) (Qps) (Scorpion 4) (set 4) | MAME |
| Kaleidoscope (051) (Qps) (Scorpion 4) (set 1) | MAME |
