NFL Blitz 20-02
Enter the following cheats by changing the icons shown below the helmets on the versus screen. The numbers below show how many times to press each button. After that press the D pad in the direction indicated. 

Example: Clear Weather code (1-2-3 Right) press L, R, R, A, A, A, D pad Right 

Cheat: Button Presses (L-R-A) then D-pad direction to press 

More time after plays: 0-0-1 Right
No CPU assistance (requires 2 player agreement) : 0-1-2 Down
See more field(requires 2 player agreement) : 0-2-1 Right
Get Big feet: 0-2-5 Left
Get Big shoulders: 0-2-5 Right
Get Chimp mode: 0-2-5 Up
Get Classic NFL Blitz ball: 0-3-0 Left
Get Chrome ball: 0-3-0 Left
Fast running speed: 0-3-2 Left
Get Indians team: 0-4-5 Left
Get Super blitzing: 0-5-4 Up
Tourney mode in two team game: 1-1-1 Down
Get Super field goals: 1-2-3 Left
Clear weather: 1-2-3 Right
Get Cowboys team: 1-3-5 Left
No punting: 1-4-1 Up
Extra Big Head ball carrier: 1-4-5 Left
Big head for ball carrier: 2-0-0 Right
Big head for team: 2-0-3 Right
No first downs: 2-1-0 Up
Allow stepping out of bounds: 2-1-1 Left
More code entry time: 2-1-2 Right
Always QB (two humans on team): 2-2-2 Left
Always receiver (two on team): 2-2-2 Right
Ground fog: 2-3-2 Down
Fast passes: 2-4-0 Left
Midway team: 2-5-3 Right
Rollos team: 2-5-4 Up
Bilders team: 3-1-0 Up
Smart CPU teammates: 3-1-4 Down
No target receiver highlight: 3-2-1 Down
Noftle mode: 3-2-5 Up
Extra offense plays: 3-3-3 Down
Neo Tokyo team: 3-4-4 Down
More fumbles: 3-4-5 Up
Showtime mode: 3-5-1 Right
No interceptions: 3-5-5 Up
Crunch Mode team: 4-0-3 Right
Power-up offense: 4-1-2 Up
Unlimited turbo: 4-1-5 Up
Power-up defense: 4-2-1 Up
Brew Dawgs team: 4-3-2 Down
Gsmers team: 5-0-1 Up
Power-up linemen: 5-2-1 Up
No random fumbles (requires 2 player agreement): 5-2-3 Down
Armageddon team: 5-4-3 Right
No replays: 5-5-4 Right
Snowy weather: 5-5-5 Left
Rainy weather: 5-5-5 Right 

Get Other Players Using the Following ID and PIN Numbers: 

ID PIN 

BEAR 1985
CLOWN 1974
COWBOY 1996
DEER 1997
DOLPHIN 1972
EAGLE 1981
HORSE 1999
INDIAN 1992
LION 1963
PINTO 1966
PIRATE 2001
RAM 2000
RAVEN 2001
TIGER 1977
VIKING 1977