Turbo mode 
Enter the "Options" screen and choose the "Codes" selection. 
Then, enter TURBO as a cheat code. The code is case-sensitive. 
Choose the "Game Options" selection, highlight "Game Speed" and 
change the speed to "Turbo".

Large players 
Enter the "Options" screen and choose the "Codes" selection. 
Then, enter MONSTER as a cheat code. The code is case-sensitive.

Fat players 
Enter the "Options" screen and choose the "Codes" selection. 
Then, enter LARD as a cheat code. The code is case-sensitive.

Big head mode 
Enter the "Options" screen and choose the "Codes" selection. Then, enter FATHEAD as a cheat code. The code is case-sensitive.

Hidden message 
Enter the "Options" screen and choose the "Codes" selection. Then,
enter HIMOM as a cheat code to see a "love your child" message. 
The code is case-sensitive.