Re: How Wopuld I download and Play GAB games you need a GBA flashcart, they might be hard to find these days. Alternatively, for DS (phat/lite only) you need either a slot1 flashcart and a slot2 flashcart, or a supercard DSTwo flashcart.
Someone else will have to answer that, but it might help if you mention what country you're located in.
as to how to play GBA game with dstwo, you can follow the guide in this post: http://www.instructables.com/id/How-to-play-gba-games-with-Supercard-dstwo/
