| Onyanko Town |
| (Japan) |
PNF-OT (R49V5901) |
40K |
270EAED5 |
7 |
| Operation Secret Storm |
| (USA) (Unl) |
CDR-OM-81023 |
128K |
EA113128 |
6 |
| Operation Wolf |
| (USA) |
NES-OW-USA |
256K |
EDC3662B |
29 |
| Orb-3D |
| (USA) |
NES-5H-USA |
192K |
958E4BAE |
7 |
| Orebody - Sand Ripples |
| (World) (Rev 1) (Aftermarket) (Homebrew) |
|
41K |
B7917A5F |
1 |
| Otaku no Seiza - An Adventure in the Otaku Galaxy |
| (Japan) |
MAM-OQ |
384K |
4582F22E |
20 |
| Othello |
| (Japan) |
KWD-OH |
40K |
87D7CAF0 |
2 |
| (USA) |
NES-OH-USA |
40K |
699FA085 |
6 |
| Outlanders |
| (Japan) |
VFR-A1 (03) |
128K |
7AA02377 |
14 |
| Over Horizon |
| (Europe) |
NES-Z6-NOE |
256K |
9237B447 |
16 |
| (Japan) |
GAM-Z6 (09) |
256K |
CE06F2D4 |
2 |
| Overlord |
| (USA) |
NES-VL-USA |
256K |
2856111F |
10 |
| P'Radikus Conflict |
| (USA) (Unl) |
CDR-PT-81017 |
128K |
42749A95 |
14 |
| P.O.W. - Prisoners of War |
| (USA) |
NES-EW-USA |
256K |
75255F88 |
70 |
| Pac-Land |
| (Japan) |
NAM-NPL-4500 (10) |
40K |
89D42098 |
15 |
| Pac-Man |
| (Europe) |
|
24K |
81210F63 |
4 |
| (Japan) (En) |
NAM-NPM-4500 (02) |
24K |
3E95BA25 |
8 |
| (Japan) (En) (Rev A) |
NAM-NPM-4500-02 |
24K |
5CDB2823 |
8 |
| (Japan) (En) (Rev B) |
|
24K |
2C7D68F3 |
2 |
| (USA) (Namco) |
NES-P7-USA |
24K |
9E4E9CC2 |
18 |
| (USA) (Tengen) |
NES-PQ-USA |
24K |
A9BBF44F |
30 |
| (USA) (Tengen) (Unl) |
NES-PQ-USA |
24K |
9D38F8F9 |
11 |
| Pac-man CE 8-bit Demake |
| Pac-man CE 8-bit Demake |
|
0K |
|
13 |