A possible arena mode?

Looking on the internet, I ve found a 2 local player tutorial, which I could use to actually have an arena mode in my game. It would actually be cool to implement something like that, like story mode and arena mode. This code would actually divide the screen in two. I would have love to try it today, but I need to focus on the visuals now. Also I ve been working on dissertation today. So Ill probably leave it for later, something around end of january.