GAME GENIE CODES: Greatest Heavyweights. |
||
| No. | Code | Effect |
| 1 | BJ6A-ACD6 | Rounds are 1 minute |
| 2 | BJ6A-AED6 | Rounds are 2 minutes |
| 3 | BJ6A-AJD6 | Rounds are 4 minutes |
| 4 | BJ6A-AND6 | Rounds are 6 minutes |
| 5 | BJ6A-AWD6 | Rounds are 9 minutes |
| 6 | CTXT-AA46 | Rounds are infinitely long--must win by knockout |
| 7 | AJ4T-AA2A | Infinite rounds, must win by knockout |
| 8 | RH7A-A6YA | Set attributes to what you want when creating a new boxer |
| 9 | RH9A-A6TE | Attributes aren't reduced after a fight |
| 10 | RH9T-A6VN+BM9T-AA9W | Pick as many training items as you want |