| Gameshark Ready 2 Rumble Boxing: Round 2 Hacks |
| Start at Last Match (Arcade Mode) | D00A101C 0000 800A101C 000B |
| Player 1 Codes |
| Infinite Health | 800B0D30 0064 |
| 75% Health | D00B0D34 0064 800B0D34 004B |
| 50% Health | D00B0D34 0064 800B0D34 0032 |
| 25% Health | D00B0D34 0064 800B0D34 0019 |
| No Health | 800B0D30 0000 |
| Infinite Stamina | 800B0D34 0064 |
| No Stamina | 800B0D34 0000 |
| Max Rumble Meter | 800B0D3C 0090 |
| No Rumble Meter | 800B0D3C 0000 |
| Easy Knock Out | 800B0D30 0000 800B0D34 0000 800B0D3C 0000 |
| Player 2 Codes |
| Infinite Health | 800B1970 0064 |
| 75% Health | D00B1970 0064 800B1970 004B |
| 50% Health | D00B1970 0064 800B1970 0032 |
| 25% Health | D00B1970 0064 800B1970 0019 |
| No Health | 800B1970 0000 |
| Infinite Stamina | 800B1974 0064 |
| No Stamina | 800B1974 0000 |
| Max Rumble Meter | 800B197C 0090 |
| No Rumble Meter | 800B197C 0000 |
| Easy Knock Out | 800B1970 0000 800B1974 0000 800B197C 0000 |
| Championship Mode Codes |
| Max Money | 800B3418 423F 800B341A 000F |
| Infinite Money | 800B3418 FFFF |
| Max Strength | 300B341E 00FF |
| Max Stamina | 300B3422 00FF |
| Max Endurance | 300B3426 00FF |
| Max Dexterity | 300B342A 00FF |
| Max Experience | 300B342E 00FF |
| Champ Rank | 800B3408 0000 |
| Wins Modifier | 800B340C ???? |
| Losses Modifier | 800B3410 ???? |
| Start at Championship Fight | D00B3408 000C 800B3408 0001 |