NFL Street Cheats

This is pretty simple. All that you have to do is when you are about to
tackle a player who has the ball hold the 'L' and 'R' buttons and then
dive at the player and they will fumble more than when you just tackle
them by pressing 'B.'

Normally when you try to exit the ladder screen, it erases your ladder status. However, if you turn off your GameCube at the ladder screen, you can turn it on again and play the game as usual. When you select your NFL challenge team, it will take you to the ladder screen with all of your beaten games.

Select Play It. Select new User ID and name it Classic(with a capital C). You will get nine classic characters under that name.

To unlock hidden teams, enter these names when creating new user names (note: these are case-sensitive):
NFC North Allstars: NN6789
NFC East Allstars: NE3278
NFC South Allstars: NS9378
NFC West Allstars: NW9378
AFC North Allstars: AN6789
AFC East Allstars: AE3278
AFC South Allstars: AS6884
AFC West Allstars: AW9378
NFL Legends Team: Classic
KaySlay Team: KaySlay
Xecutioner Team: Excellent

Password - Effect:
Travel - Unlock all fields
AW9378 - Unlock every All-Star team.
Classic - Unlock NFL Legends as a playable team
KaySlay - Unlock Team Kay Slay
Excellent - Unlock the X-ecutioners as a playable team.

Complete NFL Challenge mode to unlock All NFL Pickup mode.

Complete NFL Challenge mode to unlock All NFL Pickup mode.