Catz
Note: You must have a 2.1 or higher version of the Game Shark to use these codes in a Game Boy Color system.
| Sophisto Codes | |
| Max Happiness | 80AAD180 |
| Max Energy | 80AA9AA1 |
| Max Affection | 80AAD6A1 |
| Jester Codes | |
| Max Happiness | 80AA51A1 |
| Max Energy | 80AA95A0 |
| Max Affection | 80AAD6A0 |
| Homeboyd Codes | |
| Max Happiness | 80AAD1A1 |
| Max Energy | 80AA1AA1 |
| Max Affection | 80AA56A1 |