EZ Flash IV, Pokemon GEN III-V

There are supposed to be Pokemon in the DS games you can only encounter if you have a GBA game in the Bottom Slot of your DS. Can also only access Pal Park with that. Can you use EZ Flash IV as a substitute?

And PLEASE don't say Pokesav. It's more fun to do the 6 Pokemon a day thing, IMO.

Thanks in advance!