Cheat List
Enter the following as your User Name to unlock goodies:

Classic	Unlock NFL Legends
Travel	Unlock all stadiums
KaySlay	Unlock team Kay Slay
Excellent	Unlock team X-ecutioner

Unlockables: Teams

AFC West All-Stars	Beat AFC West ladder in NFL Challenge
AFC East All-Stars	Beat AFC East ladder in NFL Challenge
AFC North All-Stars	Beat AFC North ladder in NFL Challenge
AFC South All-Stars	Beat AFC South ladder in NFL Challenge
NFC West All-Stars	Beat NFC West ladder in NFL Challenge
NFC East All-Stars	Beat NFC East ladder in NFL Challenge
NFC North All-Stars	Beat NFC North ladder in NFL Challenge
NFC South All-Stars	Beat NFC South ladder in NFL Challenge
Kayslay	Beat second Ladder team in NFL Challenge
NFL Legends	Beat first Ladder team in NFL Challenge
X-ecutioners	Beat fourth Ladder team in NFL Challenge

Cheat List: More Goodies
Enter the following as your User Name to unlock goodies:

ae3278	AFC East All-Star team
an3278	AFC North All-Star team
as6884	AFC South All-Star team
aw9378	AFC West All-Star team
ne3278	NFC East All-Star team
nn6789	NFC North All-Star team
ns9378	NFC South All-Star team
nw9378	NFC West All-Star team

All NFL Pickup Mode
How to unlock: Complete NFL Challenge mode.