Madden NFL '97 cheats and cheat codes for Playstation

Secret teams
Start an exhibition game. Choose any 2 teams and the controller options.
Then, input "TIBURON" as a user name and accept by pressing X.
Push the Circle button to go back to the team select page.
Now you can select 8 additional teams. These are the followings:
AFC Pro Bowl 
All '60s 
All '70s 
All '80s 
All-Time All-Madden 
EA Sports 
NFC Pro Bowl 
Tiburon 

To select hidden teams randomly, hold L2 + R2 in exhibition mode. 


Watch winning, losing and Super Bowl movies:
Hold R1 or R2 during the loading of the game, when the black screen 
with the PSX logo appears. If the code is accepted, a screen titled 
"Cinematics" will appear instead of the title screen. 


Madden NFL '97 Game Shark Codes:

Unlimited Time to Choose a Defensive Play 
800804E8 0036

Unlimited Time                           
80080E5C 012C
        
Unlock Bonus Teams                             
80080718 006B
      
Home Team Unlimited Time Outs            
8008A642 0002
        
Modify Home Team Score
8008A640 ????
8008D1E8 ????
8008A9DC ????
        
Away Team Unlimited Time Outs            
80088682 0003
        
Modify Away Team Score
80088680 ????
8008D1E4 ????
8008A9D4 ????

Unlimited Time to Choose a Play*
80080DC4 0063
        
*You must turn the Game Shark off to hike the ball.