For the most part,
Battle Network 2 remains unchanged from the original. Having defeated the WWW, Lan settles back into the normal, everyday life of an average boy in ACDC town. He goes to school, hangs out with friends, and dodges the constant nagging of his mother to do his homework. Of course, as experienced Netbattlers already know, Lan is anything but normal.
Like many other people in Lan's world, he possesses a NetNAVI (Mega Man) to help him through his daily tasks. For new comers, NetNAVIs are a person's presence on the Internet. After jacking into a system, Lan (as Mega Man) can travel through devices and interact with their programming. As with most electronic devices, there are always a few kinks in the programming called viruses. As Mega Man travels through the net, he battles these viruses. Some are small, harmless things while others are more powerful and can only be defeated by truly skilled NetNAVIs, called NetBattlers. Mega Man can also challenge friendly NetNAVI's to battles in order to gain addition skills, called chips.
One of the more interesting parts of Battle Network 2 is the combat system. Unlike other Mega Man games, battles are based more on strategy than anything else. In fact, battles are more like poker than anything else. Before battles, Lan can arrange Mega Man's battle chips into a folder - allowing players to customize Mega Man's battle tactics to fit their personal style. At the start of a battle, Mega Man is randomly dealt five chips from his folder. Mega Man can then choose to use one or more of the chips (depending on what kinds they are) or he can throw some out and wait a turn for better chips. Once in battle, Mega Man can move around the arena, using his buster cannon to peck at enemies or use his battle chips to do massive damage. Some chips can even be used together to create a Program Advance which produces even more damage than regular chips. The number of strategies the system opens is overwhelming and should fit just about any style of player.