ROM-Reader for Super Nintendo / Super Famicom Game Cartridges

So is there an easy way to add additional flash chips (GBA specifically) to the program?

Side Note: I also tested out 4 authentic GB games. Two worked, Tetris and TMNT, 2 didn't, Zelda Links Awakening and Super Mario Bros Deluxe (Well this one was GBC). I tested all 4 of those just dumping the file to a ROM to play on an emulator.