Enter the following codes as a profile name on the Choose Team screen:
HERK Big player head.
INGY Big team heads.
SASG Different puck shadow.
211S Different puck size.
CARB Glowing puck.
After enabling one of the codes, select the "Settings" option, then "Game Tuning", then "Visuals", then "Cheats" to toggle each cheat on or off.