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

Successfully complete the Running Drills in training camp mode to unlock the 1977 Dallas Cowboys in single player mode.

Successfully complete the Passing Drills in training camp mode to unlock the 1996 Green Bay Packers in single player mode.

Successfully complete the Kicking Drills in training camp mode to unlock the 1964 Cleveland Browns in single player mode.

Successfully complete the Tackling Drills in training camp mode to unlock the 1983 Los Angeles Raiders in single player mode.