Backyard Football

Invisible players:
Press Z at main menu to display the cheats screen, then enter GHOST as a code.
vemcgysv bwout tirfmaysy rcbhmi.

Hint: Fumbles:
If you hit someone straight on or behind with speed they will fumble.
Kenny653.

Hint: Juke:
If you go straight for someone and press R or L you will juke them out.
Kenny653.

Hint: Stiff arm:
Press X to stiff arm.
PS2superfreak.

Hint: Better defense:
Your opponent always throws to the right. Always cover the right with the player that you are controlling.
Brian.

Hint: Ahman Green:
Defeat The Green Bay Packers to unlock Ahman Green.
Randy Cook.

Hint: Michael Strahan:
Get five sacks in a game.
Randy Cook.

Hint: Peyton Manning:
Defeat The Indianapolis Colts to unlock Peyton Manning.
Randy Cook.

Hint: Tony Gonzalez:
Get 250 yards receiving in a game.
Randy Cook.

Glitch: Pablo Sanchez's head:
When you pick Pablo Sanchez, sometimes the ball will go through his head slightly. You can only see this when you watch the replay.
Fulltime killer.

Glitch: Pass through objects:
When on dirt yards, you can pass through the things on the sides.
Fulltime killer.

Glitch: Player joining:
Sometimes players will join with other players.
Fulltime killer.