Sierra Championship Boxing

One of the early Sierra On-Line releases, this game lets you design your own boxer before taking him/her/it to the ring. You can play as a black or a white guy, a cartoonish character or a kangaroo (!).

Three play modes exist:
Completely interactive: You control your fighter's every move
Coaching: You tell your fighter how to fight (aggressive, jabbing, defensive, etc.) in between rounds
Completely simulated: The computer does all the fighting
Stats are input in text variables, allowing you to not only customize your boxer very specifically (reach, height, weight, etc.) but also recreate some of history's best fighters and pit them together in a simulation.

Two-player mode supported.