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