GAME GENIE CODES: John Madden Football '92.

 No.  Code  Effect
   1  RH9A-R6YE  MASTER CODE--MUST BE ENTERED
Codes 2 Thru 4 may cause delays in plays and kickoffs.
   2  D49T-AAB2  Play clock starts at 30 seconds
Codes 3 & 4, The Computer will run down the play clock -- Best to use in 2 Player mode.
   3  HW9T-AAB2  Play clock starts at 60 seconds
   4  ML9T-AAB2  Play clock starts at 90 seconds
Codes 5 thru 10 replace the 5-minute-per-quarter option in the options screen.
The screen will still display the 5-minute quarter, even though a code has been used.
The 15-minute quarter option works as normal.
   5  D3EA-CACA  Each quarter lasts 30 seconds
   6  HVEA-CACA  Each quarter lasts 1 minute
   7  SBEA-CACA  Each quarter lasts 2 minutes
   8  0BEA-CJCA  Each quarter lasts 20 minutes
   9  BBEA-CRCA  Each quarter lasts 30 minutes
 10  CBEA-C6CA  Each quarter lasts 60 minutes
 11  ACPA-AAGC  Home team starts with 0 timeouts
 12  AGPA-AAGC  Home team starts with 1 timeout
 13  ALPA-AAGC  Home team starts with 2 timeouts
 14  A0PA-AAGC  Home team starts with 5 timeouts
 15  BGPA-AAGC  Home team starts with 9 timeouts
 16  ACPA-AAGJ  Visiting team starts with 0 timeouts
 17  AGPA-AAGJ  Visiting team starts with 1 timeout
 18  ALPA-AAGJ  Visiting team starts with 2 timeouts
 19  A0PA-AAGJ  Visiting team starts with 5 timeouts
 20  BGPA-AAGJ  Visiting team starts with 9 timeouts
With Codes 21 thru 24,
if the computer is allowed more than 4 downs, it still punts on the 4th down
--so the advantage is yours.
If the computer is allowed less than 4 downs, it will always run plays and never punt.
 21  AL6T-AAFR  Only have 1 play to get a first down
 22  AR6T-AAFR  Only have 2 plays to get a first down
 23  AW6T-AAFR  Only have 3 plays to get a first down
 24  A46T-AAFR  Have 5 plays to get a first down
 25  AL6T-AA6R  Always first down - the down never counts down.
 26  FC8A-AAE2  Only need 5 yards for a first down
 27  SC8A-AAE2  Must get 15 yards for a first down
 28  YC8A-AAE2  Must get 20 yards for a first down
 29  8C8A-AAE2  Must get 30 yards for a first down
 30  AL8A-AA68  Always goal-to-go--must get a touchdown
 31  AL7T-AA9W  Touchdown worth 0 points
 32  GC7T-BE1W  Touchdown worth 1 point
 33  GC7T-BJ1W  Touchdown worth 2 points
 34  GC7T-BN1W  Touchdown worth 3 points
 35  GC7T-BT1W  Touchdown worth 4 points
 36  GC7T-BY1W  Touchdown worth 5 points
 37  GC7T-B61W  Touchdown worth 7 points
 38  GC7T-BA1W  Touchdown worth 8 points
 39  AC7T-BE5J  Extra point worth 0 points
 40  AL7T-BE5J  Extra point worth 2 points
 41  AR7T-BE5J  Extra point worth 3 points
 42  AW7T-BE5J  Extra point worth 4 points
 43  A07T-BE5J  Extra point worth 5 points
 44  A47T-BE5J  Extra point worth 6 points
 45  A87T-BE5J  Extra point worth 7 points
 46  BC7T-BE5J  Extra point worth 8 points
 47  AC7T-BE52  Field goal worth 0 points
 48  AG7T-BE52  Field goal worth 1 point
 49  AL7T-BE52  Field goal worth 2 points
 50  AW7T-BE52  Field goal worth 4 points
 51  A07T-BE52  Field goal worth 5 points
 52  A47T-BE52  Field goal worth 6 points
 53  A87T-BE52  Field goal worth 7 points
 54  BC7T-BE52  Field goal worth 8 points
 55  AL8A-AA38  Safety worth 0 points
 56  GC8A-BEV8  Safety worth 1 point
 57  GC8A-BNV8  Safety worth 3 points
 58  GC8A-BTV8  Safety worth 4 points
 59  GC8A-BYV8  Safety worth 5 points
 60  GC8A-B2V8  Safety worth 6 points
 61  GC8A-B6V8  Safety worth 7 points
 62  GC8A-BAV8  Safety worth 8 points

Download The Big Book of Game Genie Codes.