Choose any team and commit a passing interference call. After that, pick your defense quickly. If the flag is still on the ground and the referee doesn't pick it up, the announcer will say there's a flag down.
Here's a neat little trick that can be executed right before your player enters the endzone. As you begin your final few yards to the endzone, let up on the 3D stick just a little and then quickly jab the stick up and push the jump button at the same time. Your player will now high step into the endzone with the football held over his head.
Enter the word LEI to get the '96 NFC Pro Bowl Team.
Enter the following name: ELEC ARTS and you will be able to play as the EA Sports Team.
Enter this at the name entry screen: STATS MEN for the statistical leaders team.
Enter MAITLAND at the name entry screen to play in the Tiburon Sports complex.
This is a funny glitch When you are playing with two players in Madden 64, you can make a player fly. To do so, have the first player start, pressing B to call audible as fast as he can. The second player should press jump (Left-C) as fast as he can. The second player will eventually jump continually on top of the screen. If you get him high enough, the instant replay will also be really screwed up. Pretty funny stuff.
Type in SAN MATEO [the EA hometown] at the Create Player screen to access the secret EA Stadium.
At the create a player screen type the following names, and you will be able to unlock some of the hidden teams: SIXTIES - Team of the '60s SEVENTIES - Team of the '70s EIGHTIES - Team of the '80s HOWLIE - AFC Pro Bowl '96-97
To see some of the cool real-time rendered winning sequences, turn on your N64 and hold the L, R, and Z buttons when the EA logo comes up. You will now be treated to some nice eye-candy. Congratulations. You've made it! You've cheated your way to an ending animation.
A hidden team, Tiburon, is included in Madden 64. To unlock the team go to Season mode and then to Front Office. Select Create Player and then go to name. Enter "Tiburon" into the field and then go down to continue. Save it and then go back to the main menu (using the B button). Now go into Exhibition mode and the team Tiburon will be selectable. They are giants. Play as the secret team, Tiburon, and tower over opponents.