DC to DC ModeM, HowTo's
 

How do U connect 2 Dreamcast So that u can play with a friends or a neighbor. Is there a way to connect it? How do you do that?

you buy a cable thats like 40 bucks and use it. the only game that supports this is voot (not worth it). if your trying to play like nullmodem like you do with a pc, you cant do that :(