At the pre-game screen with the "Start Game", "Roster", "Options", and "Statistics" selections, press L1, R1, L2, R2. Then, enter one of the following codes:
| Code | What It Does |
| ASSASSIN | More injuries |
| ATOMIC BOMB | Hard hits explode |
| BAZOOKA | Quarterback throws harder |
| BIG GIRLS | Cheerleaders are bigger |
| BIG STARS | Star players bigger than other players |
| BLASTERS | More time to hit a receiver to free the ball |
| BLIND REF | Less penalties |
| BLIZZARD | Strong winds with snow |
| BO KNOWS | Shoulder charge |
| BRITTLE | More injuries |
| BROADWAY JOE | Quarterbacks accuracy is increased |
| BUSY REF | More penalties |
| BUTKAS | Defense hits harder |
| CRUNCHY | Louder hits |
| CREDITS | Displays the credits |
| DARK NIGHT | Darker stadium |
| DEFENSE | Defense is better |
| DERVISH | More effective spins |
| DOC | Used to delete last remaining code in menu |
| ELECTRIC FB | Simulate electric toy football game |
| EQUALIZER | Most players have similar abilities |
| FLEA CIRCUS | Players are very small |
| FRIDGE | Players are big |
| GOLIATH | Huge players |
| FROG | Hurdle higher |
| REJECTION | Jump higher |
| GB SPEED | Makes the game as fast as NCAA GameBreaker |
| GD CHALLENGE | Computer is harder |
| GENIUS | Computer is smarter |
| GLOVES | More passes are caught |
| HANG TIME | Kicks are higher |
| HATCHET | Jump and hang in air for longer time |
| HOGS | Offensive line blocks better |
| HOME COOKING | No call-pass interference or personal fouls for home team |
| ICE SKATES | Slippery playing field |
| IDIOT | Computer is less smart |
| INFAMOUS POP UPS | Adds pop ups from the NFL GameDay |
| JUGGLER | Ball pops up higher when receiver fumbles |
| JUICE | Faster speed burst |
| LONG JUMP | Players dive farther |
| LOUD MOUTH | Announcer is louder |
| KARATE | Forearm shiver on defense is now a karate chop |
| KRAIG | Players are smaller |
| MANDARICH | Offensive line is at a disadvantage |
| NO TIME | Clock never runs |
| NYSE | Swim move is better |
| OFFENSE | Offense is better |
| OUCH | Stiff arm is stronger |
| PANCAKE | Press L2 + Square to hit harder; like flattening a pancake |
| PINBALL | Forearm shiver is stronger on defense |
| PISTON | Jackhammer off a stiff arm |
| SAYERS | Running back is faster and stronger |
| SCRAMBLER | Faster Quarterback |
| SHOUT | Crowd is louder |
| SLO MO | Players are slower |
| SQUALL | Strong wind with rain |
| STEROIDS | Harder hits |
| STRETCH | Press L2 + Triangle for jumping one handed catch |
| TEMPEST | Very dark stadium |
| TIGHT COVER | Better coverage |
| TOAST | Defense backs do not cover as well |
| TORRETA | Quarterback lobs passes |
| TWISTER | Strong winds |
| Infinite Time to Choose Play | 800CA142 0028 |
| Infinite Time | 800CA13A 0009 |
| Infinite Time Outs Home Team | 800CA054 0003 |
| No Time Outs Home Team | 800CA054 0000 |
| Home Team Score Modifier | 800CA04C 00?? |
| Infinite Time Outs Away Team | 800CA056 0003 |
| No Time Outs Away Team | 800CA056 0000 |
| Away Team Score Modifier | 800CA050 00?? |