Nintendo. and to do that i'd murder the entirety of Nintendo of America.
Because most casual games are made to appeal more to american audiences. Just like in pokemon, making the rival a nice, friendly guy instead of an asshole because tupperware soccer moms thought it was a bad influence. Just like they replaced Kris, a self reliant but friendly girl with the look and attitude of a respectable pokemon trainer. Now we get soul, who's made more for "today's audience" running around half dressed and trying to pretend at being a competant trainer while asking Gold or Silver or the little bug boy to hold her hand while she catches the mean little rattata
I'd make a small office within Nintendo dedicated to translating the game to other languages, and making the game pass censorship standards.
Sure we'd lose out on a lot of... actually... i can't imagine anything we'd lose. Maybe an extra 2 weeks to a month longer for release dates but that's it.