Play Greatest Heavyweights (Sega Genesis) Online

Console Sega Genesis Genre FightingSports Players
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Cloud Save

Controls

Click the game first to enable controls.

Player 1

WASD
Move
H
Left Jab
J
Block Head
K
Right Jab
Y
Left Uppercut
I
Right Uppercut
Enter
Pause

Player 2

Move
Num 1
Left Jab
Num 2
Block Head
Num 3
Right Jab
Num 4
Left Uppercut
Num 6
Right Uppercut
Num +
Pause

Emulator

Q
Fast Forward
E
Rewind
4
Slow Motion
1
Quick Save State
2
Quick Load State
3
Change State Slot
Gameplay screenshot of Greatest Heavyweights for Sega Genesis

Overview and Gameplay

Eight former heavyweight champions, including Muhammad Ali, Joe Frazier, Rocky Marciano, Joe Louis, and Evander Holyfield, meet in a boxing game built around movement, timing, blocking, and targeted damage. Exhibition bouts provide immediate matches, while Tournament mode places one legend in an eight-man elimination bracket.

Career mode lets players create a boxer, begin near the bottom of the rankings, train power, speed, and stamina, earn money, capture the championship, and eventually challenge the historical fighters.

Controls And Mechanics

  • Move around the ring, throw left and right jabs, hooks, and uppercuts, or block attacks aimed at the head and body.
  • Separate head and torso indicators show accumulated damage. Sustained punishment can cause knockdowns or a technical knockout.
  • Six-button controllers assign uppercuts to dedicated buttons, while three-button pads use button combinations.
  • Two players can compete simultaneously in versus exhibition bouts. Career and Tournament are solo modes.

Release And Credits

  • Release year: 1993
  • Developer: Acme Interactive
  • Publisher: Sega of America
  • Platform: Sega Genesis
Version
greatest-heavyweights_usa.md
Status
Playable in browser
Updated
July 9, 2026

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