There’s actually another Ace Attorney game that hasn’t (and probably won’t be localized). It’s a distant prequel starring Phoenix Wright’s ancestor, and the fan title is “The Great Ace Attorney” (I forget the actual Japanese title). Unfortunately, it’s on the 3DS, which is region-locked, so even if you can read Japanese you’re boned. It’s also not nearly as easy to patch and play games for it as with the DS. I really do wish Capcom would accept a fan translation for it, even with a disclaimer that that’s the case.