Sega Soccer Slam Cheats

At The Title Screen Enter : X, Y, Down, Down,
Down, Down
Get Classic Film Mode
At The Title Screen Enter :  X, Y, X, Y, X,
Y, Left, Right, Left, Right, Left, Right
Get Modern Film Mode
At The Title Screen Enter :  Y, X, Y, X, Y,
X, Right, Left, Right, Left, Right, Left

Enter these codes at the main title screen (when the words "Press Start" appear). Entering the same code again will disable it.

Jungle Stadium- up, down,left,right,X,Y
Pacific Atoll Stadium- up,up,left,left,Y,Y
Oasis Stadium- up,up,down,down,X,X
Alpen Castle Stadium- up,up,up,down,X,X
Riviera Ruins Stadium- Up,down,down,right,Y,X
Reactor Core Stadium- up,left,left,right,X,Y


unlock ALL stadiums-up,up,up,up,X,X

Press Y, X, Y, X, Y, X, Right, Left, Right, Left, Right, Left at the title screen.

To unlock all of El Diablo's items enter this at the title screen:
Left, X, right, X, down.
Source: IGN