Enter Garfield, Monster, Mouse and Cheese as a password. Press [Enter] at the top of the screen and click on the "Levels" option that appears.

Level - Password

2 - Garfield, Odie, Granny
3 - Chicken, Jon, Bear
4 - Monster, Arlene, Mouse
5 - Odie, Bear, Arlene
6 - Jon, Granny, Garfield
7 - Mouse, Chicken, Monster