Unlock Everything
To unlock everything, enter OVERTIME as your profile name.

1964 Cleveland Browns team
Create a profile and enter "Bigrun" as a case-sensitive name. If you entered the code correctly, a message will appear. Alternately, successfully complete the Kicking Drills in training camp mode to unlock the 1964 Cleveland Browns in single player mode.

1977 Dallas Cowboys team
Create a profile and enter "Thehat" as a case-sensitive name. If you entered the code correctly, a message will appear. Alternately, successfully complete the Running Drills in training camp mode to unlock the 1977 Dallas Cowboys in single player mode.

1983 Los Angeles Raiders team
Create a profile and enter "Outlaws" as a case-sensitive name. If you entered the code correctly, a message will appear. Alternately, successfully complete the Tackling Drills in training camp mode to unlock the 1983 Los Angeles Raiders in single player mode.

1985 Bears team
Create a profile and enter "Sausage" as a case-sensitive name. If you entered the code correctly, a message will appear.

1989 49ers team
Create a profile and enter "Empire" as a case-sensitive name. If you entered the code correctly, a message will appear.

1996 Green Bay Packers team
Create a profile and enter "Green" as a case-sensitive name. If you entered the code correctly, a message will appear. Alternately, successfully complete the Passing Drills in training camp mode to unlock the 1996 Green Bay Packers in single player mode.

Classic teams
Defeat the teams in classic challenge mode to unlock them in single player mode.

Commandos stadium
Create a profile and enter "Barracks" as a case-sensitive name. If you entered the code correctly, a message will appear. Alternately, complete twenty five seasons in dynasty mode.

Tumbleweed stadium
Create a profile and enter "Dustbowl" as a case-sensitive name. If you entered the code correctly, a message will appear. Alternately, complete fifteen seasons in dynasty mode.

Pansies stadium
Create a profile and enter "Flowery" as a case-sensitive name. If you entered the code correctly, a message will appear. Alternately, complete twenty seasons in dynasty mode.

Pyramid stadium
Create a profile and enter "Sphinx" as a case-sensitive name. If you entered the code correctly, a message will appear. Alternately, complete five seasons in dynasty mode.

Samurai stadium
Create a profile and enter "Warrior" as a case-sensitive name. If you entered the code correctly, a message will appear. Alternately, complete ten seasons in dynasty mode.

Unlocking bonus stadiums easily
Choose a team and simulate seasons in dynasty mode until the desired stadium is unlocked.

Getting players in dynasty mode
Use the following trick to get any player and create a player with as high a rating as you want in dynasty mode. First, at the main menu, go to "General Manger", and trade, sign, or create whomever you want. Next go to "Season", and on to "Dynasty". Turn off the salary cap and alter your depth chart. You should now have all of your favorite players without having to pay too much for them.