| Cheat mode | Left, Right, Left, Left, Right, Up, Down, R1, R1, R1, R1, R1, R2. |
| All boxers | Left, Left, Right, R2, Left, Right, Right, R1, R1, R2. |
| All champion costumes | Left, Down, Right, Right, Up, R1, R2, R1 (20 times), R2. |
| All holiday costumes | Left, Left, Down, Right, Up, R1, R1, R1, R1, R1, R1, R1, R1, R2, R1(4), R2. |
| All training | Left, Down, Up, Down, Up, R1 (20 times), R2. |
| New Years | Right, Up, Down, Down, Down, R1, R2. |
| SValentines Day | Right, Up, Down, Down, Down, R1, R1, R2. |
| St. Patricks Day | Right, Up, Down, Down, Down, R1, R1, R1, R2. |
| Easter | Right, Up, Down, Down, Down, R1, R1, R1, R1, R2. |
| Independence Day | Right, Up, Down, Down, Down, R1, R1, R1, R1, R1, R2. |
| Halloween | Right, Up, Down, Down, Down, R1, R1, R1, R1, R1, R1, R2. |
| Thanksgiving | Right, Up, Down, Down, Down, R1, R1, R1, R1, R1, R1, R1, R2. |
| Christmas | Right, Up, Down, Down, Down, R1, R1, R1, R1, R1, R1, R1, R1, R2. |
| New Years | Right, Up, Down, Down, Down, R1, R2. |
| Fat boxer | Right, Right, Up, Down, Right, R1, R1, R2. |
| Thin boxer | Right, Right, Up, Down, Right, R1, R2. |
| Undead boxer | Left, Up, Right, Down, R1, R1, R2. |
| Big head | Right, Right, Up, Down, Right, R1, R1, R1. |
| Big gloves | Left, Right, Up, Down, R1, R2. |
| Fast mode | Right, Right, Up, Down, Right, R1, R1, R1, R1, R1, R2. |
| Start at final match | R2, Down, Right, Up, Left, R1, R1, R1, R1, R1, R1, R2, R1, R1, R2. |
| Unlock Freak E. Deke & M. Jackson | R1 (13 times), R2, R1 (10 times), R2. |
Pause, then press R2, R1, R1, R2, R1, R2, R1, R1, R1, R1, R2, Left, Right, Up, Down.