Madden NFL '99 Gameshark Codes (USA)
This page contains the Gameshark codes that I have for Madden NFL '99, a game for the Nintendo 64. If you are playing on a physical N64 console then you will need to purchase a physical Gameshark or Xploder device to use the codes you find on this page and website. From what I have read and seen both of these cheat devices have cross compatibility.
For those of you out there using an Emulator such as Project 64, you can typically add cheats by clicking on a tab at the top of your Emulator that will lead you to a section where you can add codes. Anyone who is using the Project 64 Emulator should check out my How to Setup Codes on Project 64 Guide for more information on how to get cheats working.
If you don't see the cheats you're looking for on this page I recommend you return to my Madden NFL '99 Guides and Walkthroughs page and choose a different section.
Activator 1 P1: D0066F2C 00??
Activator 2 P1: D0066F2D 00??
Dual Activator P1: D1066F2C ????
Activator 1 P2: D0066F34 00??
Activator 2 P2: D0066F35 00??
Dual Activator P2: D1066F34 ????
Activator 1 P3: D0066F3C 00??
Activator 2 P3: D0066F3D 00??
Dual Activator P3: D1066F3C ????
Activator 1 P4: D0066F44 00??
Activator 2 P4: D0066F45 00??
Dual Activator P4: D1066F44 ????
Infinite Time Outs Home Team: 8005CF89 0003
Infinite Time Outs Away Team: 8005FA49 0003
No Time-Outs Home Team: 8005CF89 0000
No Time-Outs Away Team: 8005FA49 0000
Home Team Score Modifier: 8005CF87 00??
Away Team Score Modifier: 8005FA47 00??
Have '76 Radiers Stadium: 8004A7F0 00FF
Have '72 Dolphins Stadium: 8004A7F1 00FF
Have EA Sports Stadium: 8004A7F2 00FF
Have '64 Browns Stadium: 8004A7F3 00FF
Have '80 Oilers Stadium: 8004A7F4 00FF
Have Tiburon Stadium: 8004A7F5 00FF
Have '91 Redskins Stadium: 8004A7F6 00FF
Have '79 Bucs Stadium: 8004A7F7 00FF
Have AFC Team: 8004ADD0 00FF
Have NFC Team: 8004ADD1 00FF
Have Madden 1998 Team: 8004ADD2 00FF
Have Madden All-Time Team: 8004ADD3 00FF
Have All-Time Stats Leaders Team: 8004ADD4 00FF
Have 75th Anniversary Team: 8004ADD5 00FF
Have Equipment Managers Team: 8004ADD6 00FF
Have All 60's Team: 8004ADD7 00FF
Have All 70's Team: 8004ADD8 00FF
Have All 80's Team: 8004ADD9 00FF
Have All 90's Team: 8004ADDA 00FF
Have Tiburon Team: 8004ADDB 00FF
Have EA Sports Team: 8004ADDC 00FF
Have '99 Browns Team: 8004ADDD 00FF
GS Button For 1st Down: 890612E0 0001
GS Button For 4th Down: 890612E0 0004
Extra Stadiums
8104A7F0 FFFF
8104A7F2 FFFF
8104A7F4 FFFF
8104A7F6 FFFF
Extra Teams
8104ADD0 FFFF
8104ADD2 FFFF
8104ADD4 FFFF
8104ADD6 FFFF
8104ADD8 FFFF
8104ADDA FFFF
8104ADDC FFFF
P1 Press L For First Down
D0066F2D 0020
810612E0 0001
P2 Press L For First Down
D0066F35 0020
810612E0 0001
P3 Press L For First Down
D0066F3D 0020
810612E0 0001
P4 Press L For First Down
D0066F45 0020
810612E0 0001
P1 Press R For Fourth Down
D0066F2D 0010
810612E0 0004
P2 Press R For Fourth Down
D0066F35 0010
810612E0 0004
P3 Press R For Fourth Down
D0066F3D 0010
810612E0 0004
P4 Press R For Fourth Down
D0066F45 0010
810612E0 0004
P1 Press L For More Time To Choose Play
D0066F2D 0020
80061245 0028
P2 Press L For More Time To Choose Play
D0066F35 0020
80061245 0028
P3 Press L For More Time To Choose Play
D0066F3D 0020
80061245 0028
P4 Press L For More Time To Choose Play
D0066F45 0020
80061245 0028