 | Naughty Mouse (set 1) | 1981 | Amenip (Palcom Queen River) | nmouse | Platform / Run Jump | 6.02 |
| Naughty Mouse (set 2) (clone of: nmouse) | 1981 | Amenip Nova Games Ltd. | nmouseb | Platform / Run Jump | 0.00 |
| | New Double Bet Mahjong (Japan) | 1981 | Public Software Ltd. / Mes | janputer | | 0.00 |
 | New Rally X (sample of: rallyx) | 1981 | Namco | nrallyx | Maze / Driving | 5.37 |
| New Rally X (bootleg?) (clone of: nrallyx) (sample of: rallyx) | 1981 | Namco | nrallyxb | | 0.00 |
 | Next Fase (bootleg of Phoenix) (clone of: phoenix) | 1981 | bootleg (Petaco S.A.) | nextfase | | 0.00 |
| | Nudge Accumulator (Summit Coin) | 1981 | Summit Coin | sm_ngacc | | 0.00 |
 | Oli-Boo-Chu | 1981 | Irem / GDI | olibochu | Maze | 4.00 |
 | Omega Race (set 1) | 1981 | Midway | omegrace | Shooter / Field | 7.29 |
| Omega Race (set 2) (clone of: omegrace) | 1981 | Midway | omegrace2 | | 0.00 |
 | Pac-Gal (clone of: mspacman) | 1981 | hack | pacgal | Maze | 0.00 |
 | Pac-Man (Galaxian hardware, set 1) (clone of: puckman) | 1981 | bootleg | pacmanbl | Maze | 0.00 |
| Pac-Man (Galaxian hardware, set 2) (clone of: puckman) | 1981 | bootleg | pacmanbla | | 0.00 |
| Pac-Man (Hearts) (clone of: puckman) | 1981 | hack | pacheart | Maze | 0.00 |
| Pac-Man (Midway, harder) (clone of: puckman) | 1981 | Namco (Midway license) | pacmod | Maze | 0.00 |
 | Paint Roller (bootleg of Crush Roller) (clone of: crush) | 1981 | bootleg | paintrlr | Maze | 0.00 |
| | Panther | 1981 | Irem | panther | | 3.00 |
 | Phantoms II (Space Invaders hardware) (clone of: enigma2) | 1981 | Zilec Electronics | enigma2b | | 0.00 |
| | Pharaoh (L-2) | 1981 | Williams | pharo_l2 | | 0.00 |
| Phoenix (Irecsa / G.G.I Corp, set 1) (clone of: phoenix) | 1981 | bootleg? (Irecsa / G.G.I Corp) | phoenixc | Shooter / Gallery | 0.00 |
