Humongo Dome:
To unlock the Humongo Dome, win the Backyard Bowl.
The Castle:
To unlock the Castle, win the Backyard Bowl.
Unlockable Characters:
Unlock the following characters by performing the corresponding tasks:
CHARACTER – HOW TO UNLOCK
Jason Taylor – Get five sacks in a game with one player.
Larry Johnson – Get Five rushing TDs in one game by one player.
Vince Young – Get five TD passes in a game.
No catches:
While on defense, if the offense throws a far ball, become the defender that is guarding the receiver. Push or run into the receiver and it will result in an incomplete pass.