 | Mystic Defender (Mega-Tech) | 1989 | Sega | mt_mystd | Platform / Fighter Scrolling | 0.00 |
 | Natsuiro Mahjong (Japan) (clone of: mjnatsu) | 1989 | Video System Co. | natsuiro | Tabletop / Mahjong *Mature* | 0.00 |
| | New Lucky 8 Lines (set 1, W-4) | 1989 | Wing Co., Ltd. / GEI | lucky8 | | 2.25 |
| | New Lucky 8 Lines (set 2, W-4) (clone of: lucky8) | 1989 | Wing Co., Ltd. / GEI | lucky8a | | 0.00 |
| | New Lucky 8 Lines (set 3, W-4, extended gfx) (clone of: lucky8) | 1989 | Wing Co., Ltd. / GEI | lucky8b | | 0.00 |
| | NFL (ver 109) | 1989 | Advanced Video Technology | avtnfl | | 0.00 |
| | Night Moves | 1989 | International Concepts | nmoves | | 0.00 |
 | Night Striker (Japan) (clone of: nightstr) | 1989 | Taito Corporation | nightstrj | | 0.00 |
| Night Striker (US) (clone of: nightstr) | 1989 | Taito America Corporation | nightstru | | 0.00 |
| Night Striker (World) | 1989 | Taito Corporation Japan | nightstr | Shooter / Driving (chase view) | 8.70 |
 | Ninja Gaiden (PlayChoice-10) | 1989 | Tecmo (Nintendo of America license) | pc_ngaid | Platform / Fighter Scrolling | 4.67 |
 | Ninja Ryukenden (Japan, set 1) (clone of: shadoww) | 1989 | Tecmo | ryukendn | Fighter / 2.5D | 0.00 |
| Ninja Ryukenden (Japan, set 2) (clone of: shadoww) | 1989 | Tecmo | ryukendna | | 0.00 |
 | Nozokimeguri Mahjong Peep Show (Japan 890404) (clone of: mjfocus) | 1989 | AC | peepshow | Tabletop / Mahjong *Mature* | 0.00 |
| | Oh! Paipee (Japan 890227) | 1989 | Nichibutsu | ohpaipee | | 0.00 |
 | Omega Fighter | 1989 | UPL | omegaf | Shooter / Flying Vertical | 6.60 |
| Omega Fighter Special (clone of: omegaf) | 1989 | UPL | omegafs | Shooter / Flying Vertical | 0.00 |
 | Omotesandou (Japan 890215) | 1989 | Anime Tec | omotesnd | Tabletop / Hanafuda *Mature* | 0.00 |
 | Otogizoushi Urashima Mahjong (Japan) | 1989 | UPL | urashima | Unplayable | 0.00 |
| | Pac-Land (United Amusements PC Engine) | 1989 | Namco | paclandp | | 0.00 |
