| Atari 2600 cart. |  Jr. Pac-Man Model CX26123P | 1988 | Atari Corp. CA, USA |
| Atari 2600 cart. |  Jr. Pac-Man Model CX26123 | 1986 | Atari Corp. CA, USA |
| Atari 2600 cart. | Jumping Jack Model DY-293005 | 1983 | Dynamics |
| Atari 2600 cart. |  Jungle Fever + Knight on the Town Model 203 18 | 1982 | PlayAround |
| Atari 2600 cart. | Jungle Fever Model 1011 18 | 1982 | Mystique CA, USA |
| Atari 2600 cart. | Jungle Hunt | 1988 | Atari Corp. CA, USA |
| Atari 2600 cart. | Jungle Hunt Model C-1007 | 1983 | CCE Soft. Brazil |
| Atari 2600 cart. | Jungle Hunt Model CX2688P | 1983 | Atari, Inc. CA, USA |
| Atari 2600 cart. | Jungle Hunt Model CX2688 P | 1983 | Atari, Inc. CA, USA |
| Atari 2600 cart. |  Jungler | 1983 | Gakken Japan |
| Atari 2600 cart. | Kabobber | 1983 | Activision, Inc. Mountain View, CA, USA 47875 |
| Atari 2600 cart. | Kaboom - Schneller Als der Knall Model 711 010-720 | 1981 | Ariolasoft Germany |
| Atari 2600 cart. | Kaboom! | 19?? | CCE Soft. Brazil |
| Atari 2600 cart. | Kaboom! Model AG-010 | 1981 | Activision, Inc. Santa Clara, CA, USA 47875 |
| Atari 2600 cart. | Kaboom! Model CAX-010 | 1981 | Activision, Inc. Santa Clara, CA, USA 47875 |
| Atari 2600 cart. | Kaboom! Model EAG-010 | 1982 | Activision, Inc. Santa Clara, CA, USA 47875 |
| Atari 2600 cart. | Kaboom! Model PAG-010 | 1981 | Activision, Inc. Santa Clara, CA, USA 47875 |
| Atari 2600 cart. | Kamikaze Saucers | 1983 | Syncro |
| Atari 2600 cart. | Kampf dem Planeten Model 712 009-720 | 1983 | Ariolasoft Germany |
| Atari 2600 cart. | Kampf dem Steinfresser Model 463.574 4 | 1983 | Quelle |
| Atari 2600 cart. | Kampf in der Galaxie | 1983 | Hertie |
| Atari 2600 cart. | Kampf um die Schatzinsel Model 719.163 8 | 1983 | Quelle |
| Atari 2600 cart. | Kangaroo Model CX2689P | 1983 | Atari, Inc. CA, USA |
| Atari 2600 cart. | Kangaroo Model CX2689 | 1983 | Atari, Inc. CA, USA |
| Atari 2600 cart. | Kanguru | 1983 | Zirok Brazil |
| Atari 2600 cart. | Karate | 1982 | Funvision |
| Atari 2600 cart. | Karate Model 1044 | 1982 | Ultravision |
| Atari 2600 cart. | Karate Model FG 1001 | 1987 | Froggo Games Corp. Mountain View, CA, USA |
| Atari 2600 cart. | Katastrophen-Einsatz Model 876.013 4 | 1983 | Quelle |
| Atari 2600 cart. | Kaystone Kapers | 1983 | Digitel |
| Atari 2600 cart. | Keystone | 19?? | Tigervision Tiger Electronic Toys, Inc. Orchard Mundelein, IL, USA |
| Atari 2600 cart. | Keystone Kapers | 19?? | Digivision |
| Atari 2600 cart. | Keystone Kapers | 19?? | Robby |
| Atari 2600 cart. | Keystone Kapers | 19?? | Shock Vision |
| Atari 2600 cart. | Keystone Kapers | 1983 | Polyvox Brazil |
| Atari 2600 cart. | Keystone Kapers II | 1983 | Activision, Inc. Mountain View, CA, USA 47875 |
| Atari 2600 cart. | Keystone Kapers Model AX-025 | 1983 | Activision, Inc. Mountain View, CA, USA 47875 |
| Atari 2600 cart. | Keystone Kapers Model EAX-025-04I | 1983 | Activision, Inc. Mountain View, CA, USA 47875 |
| Atari 2600 cart. | Keystone Kappers Model C-816 | 1983 | CCE Soft. Brazil |
| Atari 2600 cart. | Keystone Keypers | 1983 | Zirok Brazil |
