NFL Blitz 20-03
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: 

PIN: ID 

1985: BEAR 
1974: CLOWN 
1996: COWBOY 
1997: DEER 
1972: DOLPHIN 
1981: EAGLE 
1999: HORSE 
2002: PATRIOT 
1963: LION 
1966: PINTO 
2001: PIRATE 
2000: RAM 
1977: TIGER