Could you please submit this RetroArch port to the Homebrew App Store? Or at least let someone else do it? The version currently available there isn't supported by Aroma.
Very untimely response and really late to the party, but I figured out how to at the very least change the Wii U GamePad language. Not the region, but it'd be useless because modded Wii Us now allow for pairing out-of-region GamePads without...