James "Buster" Douglas Knockout Boxing (Sega Master System)

A Master System port of Sega's arcade game Heavyweight Champ. Had a few reskins featuring real boxers.

Version Differences#

As noted above, the game was released in three different forms: James "Buster" Douglas Knockout Boxing in North America (as an 8-bit counterpart to the Genesis game), Heavyweight Champ in Europe and Brazil (a straight port of the arcade game and the only version to not feature the likeness of a real boxer), and George Foreman's K.O. Boxing, also in Europe and Brazil. George Foreman in particular is far more polished than the other two.

Intro#

Buster Douglas and Heavyweight Champ boot straight to their respective title screens, while George Foreman boots to a Flying Edge logo screen and copyright screen first.

Title Screen#

Buster Douglas	Heavyweight Champ	George Foreman

Speed Select#

Buster Douglas/Heavyweight Champ	George Foreman

George Foreman lightens the background, changes the font, and adds a photo of George Foreman. The latter also forced the speed options to be shifted to the right.

Player Selection#

Buster Douglas/Heavyweight Champ	George Foreman

The player selection screen in Buster Douglas and Heavyweight Champ was removed in George Foreman, with the options relocated to the title screen and renamed.

Pre-Match#

Buster Douglas/Heavyweight Champ	George Foreman

The graphics in George Foreman were redrawn, and Match was changed to Event.

Matchup#

Buster Douglas	Heavyweight Champ	George Foreman

• Each version of the game changes the player's boxer: Buster Douglas and George Foreman have their respective titular boxers, while Heavyweight Champ has a generic boxer named S. Davis.
• George Foreman once again overhauls the graphics, though in the process loses the pre-match text seen in the other versions.

Boxers#

• George Foreman changes the names and appearances of the opposing boxers, as well as the stats of all but B. Santana/F. Nelson.
• As noted above, George Foreman has one fewer opponent.

Match#

Buster Douglas/Heavyweight Champ	George Foreman

In addition to (yet again) redrawing the graphics, George Foreman changes the Sega logo in the ring to an Acclaim logo and relocates the super punch counter to the top of the screen with all of the other information. This also results in more of the ring being visible.

Post-Match#

Buster Douglas/Heavyweight Champ	George Foreman

• George Foreman changes the generic boxer picture to a picture of Foreman holding a hamburger, changes "YOU WON!" to "FOREMAN WINS!" and removes the text noting the number of points earned.
• Winning a match earns 3 points in Buster Douglas and Heavyweight Champ, and 4 points in George Foreman. This was likely changed because George Forman has one fewer fight.

Final Match#

Buster Douglas/Heavyweight Champ	George Foreman

The title card for the final match was changed from "Round 5" to the more fitting "Title Bout".

Ending#

Buster Douglas/Heavyweight Champ	George Foreman

The picture seen after winning the final match was changed, and George Foreman removes the congratulations text.

Credits#

Buster Douglas/Heavyweight Champ	George Foreman

George Foreman adds a trophy and a pair of boxing gloves to the background, and add a section of credits for Acclaim's "White Team". The existing credits were also changed and a Special Thanks section was added in.

          
STAFF

PLANNERS
ALL MEMBERS

PROGRAMMERS
NONCHAN
S.KAWA

DESIGNERS
YASUKUNI
S.KAWA

SOUND COMPOSER
KIN

PRESENTED BY SEGA

ACCLAIM DEVELOPMENT BY
"THE WHITE TEAM"

DAN FEINSTEIN
TOM GIBSON
DONN NAUERT
JOE LIBERTELLA
JAMES FINK

STAFF

PLANNERS
ALL MEMBERS

PROGRAMMERS
MACHIDA

DESIGNERS
AOYAMA

SOUND COMPOSER 
WADA
NISHINO

SPECIAL THANKS
FUJIOKA
HIKITA

THE END

Cheat Mode#

All versions of the game have a cheat mode, activated at the Speed Select screen. For whatever reason, George Foreman changes the button code to activate it and changes around the functions.