R4 on gba

Does exists R4 or something (R3) for gba?and if,what can you do with?
i'm asking it,because my litle sister will buy a used gba from a friend of mine and i know that in Greece at least the games can be found difficult.
ps:sory if wrong section!

GBA flashcarts do exist, yes.

You can get an ez 3-in-1 phat for the gba, or you can get an ez flash 4.not sure where to get the EZ Flash 3-in-1 Phat or the EZ Flash IV anymore since DealExtreme took them down. :(I think that they have SKUs in their forum still for the flashcarts.

I think the 3-in-1 requires a DS and a slot 1 flashcart.

I've never had one so i'm unsure about it.But try to find the EZ Flash IV if that's the case.

Yes, the EZFlash 3 in 1 is worthless without a DS and a Slot 1 flashcart. If you flash the GBA rom to NOR you could then use it as a GBA game, but without the DS you'd never be able to change your GBA game or even load one.If you can find it, the EZFlash IV and III are GBA flashcarts. I believe the IV has a MicroSD slot and the III had built in flash memory (from what I remember from before).

The EZ Flash IV has a mini sd slot, but you can just buy a micro sd to mini sd kit.