NFL Quarterback Club '97

Choose Stadium from the NDO
To pick one of the for stadiums, in the options screen (where you choose weather, control, sound, etc.) at the beginning of the game, push left or right on the D-Pad while the NFL flag is next to the rotating stadium. There is a dome, Joe Robbie, and two others

Other Codes from Shawn Piras
At the Team Select in Pre-Season Mode, type in the following codes to activate:

XXYYXY -- Constant Turbo
XXXLXX -- Fumble Mode

Secret Teams from Alma007
GAMEPRO-----XYLLXL
EGM---------XYRRXR
Some other teams:

XYZZXZ
XZRRXR
XZLLXL
ZYLLZL
ZYRRZR

More Codes from Little 'D'
Landmine Mode-X,X,X,Z,X,X
No Fumbles-X,X,X,R,X,X,
Crappy Team-X,X,Y,R,X,Y
Big Players-X,X,Z,Y,X,Z
Small Players-X,X,Z,Z,X,Z
Shadpw Players-X,X,Z,L,X,Z
100 Yard Passes & Kicks-X,X,Z,R,X,Z
Super Team-X,X,R,Y,X,R
Super Slippery-X,X,R,Z,X,R
Short,Fat Players-X,Y,Z,Y,X,Z
Tall,Skinney Players-X,Y,Z,Z,X,Z
Activate All Codes-X,X,R,R,X,R
Eight Downs-X,Y,L,Y,X,L
Activate 100 Secret Teams-L,Y,R,R,L,R