That's true, but I still think it would be too hard to make out what is happening. It's hard enough now, when playing with multiple people, and explosions are all over the place. The other thing I can think of is that by nature, this game is all about being in close proximity. Playing online, you can't get far from your team before getting teleported back. It seems like it would require a lot of effort for not much gain when both screens would share pretty much the same game area most of the time.