To get the secret teams in Madden 97, goto User Records and enter 
TIBURON as the user. Then retreat back to the team selection screen and the
teams AFC, NFC, 50-60s, 70s, 80s, EA, Madden All Time, & Tiburon --
Others?) should be available. Or you can just use the random selection until
they pop up 8D. 

To view all the cinematics in Madden 97 press L1 and R1 together at the 
begining when you first turn it on. At the sony symbol. Hold L1 and R1 untilo the 
cinematics screen pops up. Instead of going to the intro it will go to a screen 
that says cinematics. To view them just click on to them at the bottom. 

To play as the secret teams in madden 97, go to the user name screen and enter 
TIBURON, then go to the team select screen and BAM! There they are, the 
new teams.