I finished chapter three of BioShock. This is the part where you must confront and kill the grotesque and maniacal Dr. Steinman, presumably because he calls you ugly. That, and he insists on trying to kill you. He also has something you need, which in FPS-land pretty much guarantees him a toe-tag in any case.
But lets move on. Dr. Steinman is an offensive twit, a boorish distraction from the main event, because it’s in this chapter that the game first presents the player with the choice that is so quintessentially “BioShock”: Save the Little Sister, or murder her by harvesting her adam.