It does not even say it is possible in the XBL description. What about system link? Is it a shared screen with system link or can you wander? I know, I know, why would you share a screen when it is system link? I have heard of more stupid game stipulations.
Worms for dreamcast, you have to plass the controller around instead of each player having their own. I am not even sure if you can play with more than 4 people. (It has been a while)