From Wikipedia, The opponents, in order, are: Apollo Creed, Clubber Lang and Ivan Drago. Fights are of 15 rounds duration, with an increasing level of difficulty depending on the opponent, and different strategies required to overcome each. The game also features a two-player mode where player two chooses from any of the above opponents, while player one always controls Rocky. http://en.wikipedia.org/wiki/Rocky_(1987_video_game)