| Version | Serial | Size | CRC32 | Number of Codes | |||
|---|---|---|---|---|---|---|---|
| Jing Hua Yuan | |||||||
| Jing Hua Yuan | 0K | 1 | |||||
| JJ | |||||||
| (Japan) | SQF-JJ | 128K | B39A3F5B | 7 | |||
| Joe & Mac | |||||||
| (USA) | NES-CJ-USA | 256K | 26D3082C | 37 | |||
| Joe & Mac - Caveman Ninja | |||||||
| (Europe) | NES-CJ (FRG/ESP/SCN/UKV)) | 256K | 04142764 | 5 | |||
| John Elway's Quarterback | |||||||
| (USA) | NES-JQ-USA | 64K | CF322BB3 | 3 | |||
| John Smith Special Agent | |||||||
| John Smith Special Agent | 0K | 4134B332 | 8 | ||||
| Jordan vs Bird - One on One | |||||||
| (USA) | NES-OE-USA | 128K | 303D4371 | 8 | |||
| Joshua & the Battle of Jericho | |||||||
| (USA) (v6.0) (Unl) | WT-JC-6 | 256K | 99083B3A | 4 | |||
| Journey to Silius | |||||||
| (USA) | NES-4S-USA | 256K | E2C4EDCE | 75 | |||
| Journey to the Centre of the Alien | |||||||
| (World) (Aftermarket) (Homebrew) | 73K | EDE880E6 | 4 | ||||
| Journey to the West | |||||||
| (Asia) (Ja) (Unl) | 128K | 0F20210D | 5 | ||||
| Joust | |||||||
| (Japan) | HAL-JU | 24K | 927C7A3A | 5 | |||
| (USA) | NES-JU-USA | 32K | BE387AF0 | 16 | |||
| Jovial Race | |||||||
| (Asia) (En) (Unl) | 96K | A923E441 | 4 | ||||
| Joy Mech Fight | |||||||
| (Japan) | HVC-JM | 512K | 708EA2BE | 14 | |||
| Jumpin' Kid - Jack to Mame no Ki Monogatari | |||||||
| (Japan) | ASM-J9 | 256K | B976219A | 8 | |||