I got an r4 purely to play my Japanese Pokemon games on the go, but unfortunately, a real pain is, unlike Desmume, which fixes the freezing, R4 Gold Pro Revolution 3ds does not. I tried the anti freeze AR code but that fixed nothing, and there seem to be no patches for the Japanese HeartGold just to fix the freezing. I do not want the translation patch, I just want to stop the freezing. :c