In only its second year, the NBA 2K franchise took a quantum leap in both options and quality over what was already a stupendous debut. In addition to allowing you to play an entire season, NBA 2K1 introduced a genuine Franchise Mode, at last giving virtual GMs control over a team for the long haul. It also focused in on the game itself, introducing 2-on-2 and 3-on-3 Street Modes that let you play on the blacktop and it even had a functional if bare-bones online play component. To be fair, that isn't even so much on NBA 2K1 but on the fact that online console gaming was just getting going back in 2000.
NBA 2K1 (2000)