Anilrgowda

Better defense:
If you control one of your linemen and hold Left Analog-stick Down before the snap, you will get a better jump on trying to get to the quarterback or fullback. If you want to prevent the deep pass or the run, a good play to use is Deep Pass. This is useful when the other team is inside their own ten on forth down and goes for it.

Better kicks:
When kicking, try and keep the Right Analog-stick straight when going from down to up. This allows for a more accurate kick instead of one that may end up out of bounds.

Better offense:
In order to create more open passes, set picks for your other receivers in order to get them wide open. You can do this by controlling a wide receiver yourself and putting a pick on a defender; or you can set crosses, posts, curls, or flys by hot-routing other receivers near by. This usually works, and often has good results if you set the picks correctly. This is especially helpful when in need of a first down, near the endzone, or for a conversion.

Big ball:
At the line of scrimmage, hold L1 Triangle and press Up, Up.

Bonus teams:
Complete one of the following task to unlock the corresponding team. Note: The new teams will have their home stadium as the Tiburon Arena in Maitland, FL. Their original stadiums will not be available. Also, none of their original player names will be available, only the jersey numbers:

Albany Firebirds: Win the Be the Receiver challenge.
All Star Champs: Win the ArenaBowl.
Anaheim Piranhas: Win the Kicking challenge.
Buffalo Destroyers: Win the Jack Linebacker challenge.
Charlotte Rage: Win the Wall Hit challenge.
Chicago Bruisers: Get six TDs in one game.
Cincinnati Rockers: Get two rushing TDs in one game.
Cleveland Thunderbolts: Get fifteen receptions in one game with one player.
Columbus Thunderbolts: Get four receptions for a TD with one player.
Connecticut Coyotes: Get 100 rushing yards in one game.
Dallas Texans: Get 300 receiving yards in one game.
Denver Dynamite: Commit no penalties for one game.
Detroit Drive: Get four interceptions in one game.
Florida Bobcats: Return an interception for a TD.
Fort Worth Cavalry: Get six sacks in a game with one player.
Houston Thunderbears: Make eight tackles in a game with one player.
Iowa Barnstormers: Return a fumble for a TD.
Las Vegas Sting: Return a kick for a TD.
Los Angeles Cobras: Kick a 20 yard FG.
Massachusetts Marauders: Kick a 40 yard FG.
Memphis Pharaohs: Force four turnovers in one game.
Milwaukee Mustangs: Complete a 30 yard or greater pass.
Minnesota Fighting Pike: Complete a 40 yard or greater pass.
New England Sea Wolves: Get a safety.
New England Steamrollers: Get five consecutive receptions.
New Jersey Gladiators: Get ten consecutive receptions.
New Jersey Red Dogs: Get fifteen consecutive receptions.
New Orleans Night: Play a game with no interceptions thrown.
New Orleans Voodoo: Kick a 30 yard FG.
New York CityHawks: Play a game with no sacks allowed.
New York Knights: Rush over 50 yards with one player.
Oklahoma Wranglers: Make four defensive stops in one game.
Pittsburgh Gladiators: Get two TDs in one game using Be The Receiver mode.
Portland Forest Dragons: Get 25 completions by QB in one game.
Sacramento Attack: Beat an opponent by over 25 points.
San Antonio Force: Get two interceptions by one player.
St. Louis Stampede: Win the Mac Linebacker challenge.
Texas Terror: Win the Telemetry challenge.
Toronto Phantoms: Get four TDs in one game using Be The Receiver mode.
Washington Commandos: Win the Coverage Maneuver challenge.

Full attributes for all players in Play Now mode:
Enter IronMen as a profile name. When the profile is loaded, all players will have full attributes in Play Now mode.

Normal ball:
At the line of scrimmage, hold L1 Triangle and press Up, Down.

Small ball:
At the line of scrimmage, hold L1 Triangle and press Down, Down.