Unlock Cheats:
Go to My Madden at the menu, select My Madden, then go to Madden Codes. Enter the case-sensitive code to unlock the corresponding cheats:

CHEATWIRKUNG
J33I8FBingo! (increase defensive interceptions)
B61A8MDa Bomb (unlimited pass range)
I76X3TDa Boot (unlimited field goal range)
M89S8GExtra Credit (get points for interceptions/sacks)
V65J8P1st and 15 (opponent must get 15 yards)
V65J8P1st and 5 (1st down yards set to 5)
R14B8ZFumbilitis (increase opponent fumbles)
L96J7PHman Plow (increase break tackles)
D57R5SLame Duck (opponent throws lob passes)
X78P9ZMistake Free (no fumbles or interceptions)
Y59R8R Mr. Mobility (qb cannot be sacked)
D59K3YSuper Drive (increase driving distances)
V34L6DTight Fit (narrow opponent uprights)
L48G1EUnforced Errors (opponent fumbles when juked)
Z28X8K 3rd Down (opponent gets only 3 downs)
P66C4L5th Down (you get 5 downs)
O85P6ISuper Bowl XL
P48Z4DSuper Bowl XLI
T67R1OSuper Bowl XLII
D58F1BSuper Bowl XXXIX
P67E1IT.J. Duckett Gold Card


Unlock Classic Teams:
Go to My Madden at the menu, select My Madden, then go to Madden Codes. Enter the case-sensitive code to unlock the corresponding teams:

CHEATWIRKUNG
R79W6W72 Dolphins
R12D9B74 Steelers
P96Q8M76 Raiders
P74X8J58 Colts
G49P7W66 Packers
C24W2A68 Jets
G12N1I70 Browns
O18T2A77 Broncos
G97U5X78 Dolphins
F77R8H88 49ers
G95F2Q90 Eagles
I89F4I 91 Lions
I44A1O92 Cowboys
Y66K3O93 Bills
K71K4E80 Raiders
Y27N9A81 Chargers
F56D6V82 Redskins
D23T8S83 Raiders
X23Z8H84 Dolphins
F92M8M85 Bears
K44F2Y86 Giants