George Foreman's KO Boxing is a boxing game from Beam Software. It was released on the SNES and Genesis, and also saw downgraded versions for the NES, Master System and Game Gear. It features George Foreman, former heavyweight champion, and a bunch of other boxers in a game that uses the behind-the-back approach of Nintendo's Punch-Out!!.
Game Boy Version
The Game Boy version of George Foreman's KO Boxing was developed by Beam Software and published by Acclaim in September of 1992. The Game Boy version of the game supports a password save system for saving progress. This version of the game plays much like Punch Out, with there being the options of blocking, moving left or right, and throwing right or left punches.
Game Gear Version
The Game Gear version is actually a rebranded version of the Japanese game Heavyweight Champ, by Sims, Co. and published there by Sega.