I've been working on a homebrew gba game and I want to be able to play and test it on the subway. The game is for the gba and I want to play it on the DS... so the obvious answer was to have an emulator on the DS, which I was told is only possible with the 3in1 Flash cartridge. I was sort of hoping my Woodr4 1.18 (or 1.19... not sure) could play gba roms but I've read it can't without the 3in1... So it looks to me like there are a bunch of different EZ Flash products and I'm not familiar with any of them. What will work with a wood r4 and let me play my game?