Use the buttons L, R, and A to change the icons 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 press L, R, R, A, A, A, D pad Right

Cheat	Press L, R, A
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