Enter SQUISHY at the Code screen.
Enter BEACHBOYS at the Code screen.
Enter BIGFOOT at the Code screen.
Enter FATHEAD at the Code screen.
Coach in pain
Enter COACHCOUCH at the Code screen.
Enter DOUGHBOY at the Code screen.
Enter HIMOM at the Code screen to display the message: 'Hi mom! Love, your Child.' at the code confirmation screen.
Enter MONSTER at the Code screen.
Go to a screen other than the main menu (options, or customize) and don't push any buttons then the screen will turn many different colors.
Enter LITTLEGUY at the Code screen.
Go to the codes screen through the options and type DEVDUDES in all capitals to unlock hidden superstar teams. If you play as one of the development teams, and there the home team, you'll play at a playground.
To access these codes go to options and into the code screen and type in (in all capitals):
DEDMAN: Unlocks slo-mo mode in game speed, in the game options.
SCRAWL: Funky Text Style
SQUEEKY: Commentators breathing helium
LARD: Fat players