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.
Im making a Nes (Yobo) portable and i couldnt find a little screen that others have used but i found one that ben heck used except that it is pal and it says it wont work in north america. here it is http://cgi.ebay.com/Casio-EV-680-LCD-Te ... dZViewItem
i wouldnt mind any other screen that is about that size if anyone can suggest one that would work for a nesp (yobo) thanks
You could also look for a hipgear or intec screen pad. Will usually run you about $30. Just type in "controller screen" or "controller lcd" into ebay and one should show up.