| title | developer | year | game type | | pop. |
|---|
| J League Hyper Soccer - Wave no Arashi | C2 World | ? | NEC PC9801 | sport | image | | label | |
| J League Professional Soccer 1993 | Victor Entertainment | ? | NEC PC9801 | sport | image | | label | |
| J League Professional Soccer 1994 | Victor Entertainment | ? | NEC PC9801 | sport | image | | label | |
| J League Professional Soccer 1995 | Victor Entertainment | 1995 | NEC PC9801 | sport | image | | label | |
| J.B. Harold 3: D.C. Connection | Riverhill Soft | 1989 | NEC PC9801 | adventure | image | | label | |
| J.B. Harold no Jikenbo #1 - Final Mystery - Murder Club | Riverhill Soft | 1986 | NEC PC9801 | adventure Manga | image | | label | |
| J.B. Harold Series #2: Manhattan Requiem - Angels Flying in the Dark | Riverhill Soft | 1987 | NEC PC9801 | adventure | image | | label | |
| J.R.R. Tolkien's The Lord of the Rings Vol. I | Starcraft | 1991 | NEC PC9801 | role-play Fantasy | image | | label | |
| Jack - Haitoku no Megami | Silky's | 1995 | NEC PC9801 | adventure | image | | label | |
| Jan Jaka Jan | Elf | 1992 | NEC PC9801 | board game adventure Manga | image | | label | |
| Jan Oh! Quest - Hiper Mahjong Adventure | Pixy Bell | 1992 | NEC PC9801 | board game | image | | label | |
| Janborg Suzume | Studio Offside | ? | NEC PC9801 | board game | image | | label | |
| Jane | System House Oh! | 1990 | NEC PC9801 | platformer | image | | | |
| Jango 2 Koochinooban | Victor Musical Industries | 1989 | NEC PC9801 | | image | | | |
| Jango 3 | Victor Musical Industries | ? | NEC PC9801 | | image | | | |
| Jango 4 | Victor Entertainment | 1994 | NEC PC9801 | board game | image | | label | |
| Jankenpon Ver 2.0 | CMS Planning | ? | NEC PC9801 | board game | image | | label | |
| Jankirou | Fairytale Red Zone | ? | NEC PC9801 | board game | image | | label | |
| Janno Toryumon | Game Arts | ? | NEC PC9801 | | image | | | |
| Janno Toryumon 2 | Game Arts | 1991 | NEC PC9801 | board game | image | | label | |
| Janpuu | Softec | ? | NEC PC9801 | board game | image | | label | |
| Janpuu 2 | Softec | ? | NEC PC9801 | board game | image | | label | |
| Japan Bashing | System Soft | 1992 | NEC PC9801 | simulation | image | | | |
| Japanese Cult Quiz - Zipang | Wild Life | 1993 | NEC PC9801 | trivia/quiz Manga | image | | | |
| Jealousy | Inter Heart | 1995 | NEC PC9801 | adventure Manga | image | | | |
| Jedai | D.O. | ? | NEC PC9801 | | image | | | |
| Jelda II | Zero Soft | 1984 | NEC PC9801 | shooter flight Science Fiction | | | label | |
| Jesus II | Enix | 1991 | NEC PC9801 | adventure Manga | image | | | |
| Jet | subLOGIC | 1989 | NEC PC9801 | simulation flight | | | label | |
| Jiin Eternal Hero | Tenshindo | ? | NEC PC9801 | role-play Manga | image | | | |
| Jikuu no Hanayome | Kogado Software Products | 1989 | NEC PC9801 | | image | | | |
| Jinsei Quizz Game Da | Ucom | ? | NEC PC9801 | | image | | label | |
| Jissen Billiard | Pack in Video | 1989 | NEC PC9801 | | image | | | |
| Joker | Birdy Soft | ? | NEC PC9801 | | image | | | |
| Joker 2 | Birdy Soft | 1992 | NEC PC9801 | adventure | image | | | |
| Jonason - Kairai no Mai | XYZ | ? | NEC PC9801 | | | | | |
| Jorou Gumo ~Jubaku no Mesu Dorei-Tachi~ | PIL | 1997 | NEC PC9801 | adventure Manga | image | | | |
| Josei Shain o Ikasu Hou | Champion Soft | 1988 | NEC PC9801 | adventure | image | | label | |
| Jotunn | ZainSoft | ? | NEC PC9801 | | image | | | |
| Jump Bug | Hoei Sangyo;Alpha Denshi | 1981 | NEC PC9801 | action/reflex Science Fiction | | | | |
| Juujin Rogus | Random House | 1987 | NEC PC9801 | shooter Science Fiction | image | | | |
| Juveniles Megumi America | Fairy Tale | 1993 | NEC PC9801 | adventure Manga | image | | label | |
| JYB | Cocktail Soft | 1993 | NEC PC9801 | adventure Manga | image | | | |
