If you're making a portable you probably need something to watch it on. (Unless you want to guess what's happening in the game, but I wouldn't advise that) Anyway, this forum is your "Hacking a pocket TV/screen" one-stop solution. Share your experiences and knowledge here.
well you probably could but it would take some seriously extensive modification of the controller, and having a controller board(for the lcd) that is no bigger than the lcd itsself