At the Smart Dog logo screen, press Up, Down, Left, Right, Start. If you entered the code correctly, you will hear a voice say "Yeah." Then, additional characters and the Canyon court will be available in "Smash Tennis" mode. -From: dj7672@mc2k.com
While playing a game, hold R1 + R2 and press X, Square, Circle, Square, X, Triangle. Then release R1 + R2, and press Select.
| P1 Starts Off With A Score Of 40 | D01CBF60 0000 301CBF60 4040 |
| P1 Scores Always 00 | 301CBF60 4000 |
| P2 Always Has Super Special Shot | 801CBDFC 000A |
