You don't need to be in the same place to go head to head on any 2 player Amiga games when you can do it from the comfort of your own home.
The tool for the job is
kailleraI've yet to use it so can't comment on it to much, but it's still very much in development and a Broadband connection is a must from all accounts.
But just imagine, Chaos Engine| Speedball 2| SWOS etc etc to be played with or against someone on the other side of the world ;-)