Greatest Heavyweights Game Genie Codes (USA)
This page contains the Game Genie codes that I have for Greatest Heavyweights (USA), a game for Sega Genesis. If you're using an emulator you will be able to input the codes found on this page directly into the program and use them. For those of you who are old school and playing on a physical console, you'll have to purchase a Game Genie device to use them.
If you don't see the code you want on this page, I recommend you return to my Greatest Heavyweights Guides Index and choose a different section.
Always Win The Fight: AAYA-AA3R
Attributes aren't reduced after a fight: RH9A-A6TE
Automatically skips the ""ready to Rumble"" introduction: BADT-AAMT
Blocks Don't Work: E3CT-AA74
Both Players Have Powerful Punches: AASA-AAA2
Both players head and body stamina is drained: BAWA-AARW
Both players stamina never drained: BAWA-AASG
Both players stamina never goes down: AASA-AABA
Can Never Be Knocked Down Or Stun When Hit: AVJA-AA2J
Developed For Use Only With Ntsc Genesis System: AEBT-AATW
Fast Mode: KFKA-AACC
Go to Secret Cheat Menu before every Fight: ATJA-CA58
Greatest heavyweights is Joe frazier: AJRA-AAWW
Greatest heavyweights is Larry holmes: AERA-AAWW
Greatest heavyweights is Muhammad ali: ANRA-AAWW
Greatest heavyweights is holyfield: FARA-AAWW
Hit The CPU Anywhere: JVJA-AAXA
Infinite Time: ANXT-AACN
Infinite rounds (must win by knockout): AJ4T-AA2A
Now you can full up your power,speed,stamina at the same time when you create your character: AD7A-AAD0
Only Created Boxers Fight Fast: AART-AAT0
Player 1 Is Invincible And Can Hit Anywhere: 3ZCT-B3LC
Player 2 Is Invincible And Can Hit Anywhere: 33CT-BZLC
Player 2 or Cpu has your created character: BAST-AABA
Regional Lockout Bypass: EAAT-AL1T
Regional Lockout Bypass: EAAT-AY1T
Rounds are 1 minute: BJ6A-ACD6
Rounds are 2 minutes: BJ6A-AED6
Rounds are 4 minutes: BJ6A-AJD6
Rounds are 6 minutes: BJ6A-AND6
Rounds are 9 minutes: BJ6A-AWD6
Rounds are infinitely long (must win by knockout): CTXT-AA46
Set attributes to whatever you want when creating a new boxer: RH7A-A6YA
both players can only be hurt on the head or body: AAWA-AAR2
greatest heavyweights energy doesn't restore when hit: AARA-AAFJ
greatest heavyweights has created character with no name: AARA-AAFJ
Pick as many training items as you want
RH9T-A6VN
BM9T-AA9W