Powerups: 

     021R - SHOW MORE FIELD (AGREE IF 2 PLAYERS) 
     200R - BIG HEAD 
     203R - TEAM BIG HEADS 
     141R - TEAM BIG PLAYERS 
     310R - TEAM TINY PLAYERS 
     050R - BIG FOOTBALL 
     102R - HIDE RECEIVER NAME 
     555R - WEATHER: RAIN 
     222R - NIGHT GAME 
     123R - HEADLESS TEAM 
     223R - UNLIMITED THROW DISTANCES 
     423R - SUPER PASSING (2 PLAYER AGREEMENT) 
     012D - NO CPU ASSISTANCE (2 PLAYER AGREEMENT) 
     423D - NO RANDOM FUMBLES 
     314D - SMART CPU OPPONENT (IN A 1 PLAYER GAME) 
     001D - SHOW FIELD GOAL % 
     111D - TOURNAMENT MODE (IN A 2 PLAYER GAME) 
     525D - WEATHER: SNOW 
     522D - UNIDENTIFIED BALL CARRIER 
     312U - POWERUP OFFENSE 
     421U - POWERUP DEFENSE 
     233U - POWERUP TEAMMATES 
     045U - SUPER BLITZING 
     514U - INFINITE TURBO 
     151U - NO PUNTING 
     344U - NO INTERCEPTIONS 
     210U - NO FIRST DOWNS 
     040U - HUGE HEAD 
     010U - LATE HITS 
     555U - HYPER BLITZ (2 PLAYER AGREEMENT) 
     433U - INVISIBLE 
     111U - CLEAR TOURNAMENT MODE (2 PLAYER AGREEMENT) 
     444U - SUPER BLITZ (2 PLAYER AGREEMENT) 
     500L - TURN OFF STADIUM 
     115L - NO PLAY SELECTION (AGREE IF 2 PLAYERS) 
     250L - FAST PASSES 
     032L - FAST TURBO RUNNING 
     404L - POWERUP SPEED (2 PLAYER AGREEMENT) 
     312L - POWERUP BLOCKERS 
     211L - ALLOW STEPPING OB 
     123L - SUPER FIELD GOALS 
     321L - NO HEAD 
     212L - WEATHER: CLEAR 
     333L - INVISIBLE RECVR HIGHLIGHT 
     555R - WEATHER: RAIN 


Secret Head Codes:

     3456 - DAVID 
     4777 - AZPOD 
     1221 - FRANC 
     6521 - JUAN 
     8735 - BERT 
     6644 - JOVE 
     6666 - AUBREY 
     7911 - ALLEN 
     1969 - BYRON 
     8421 - FRANZ 
     2221 - BRIAN 
     1111 - GATSON