I was trying to play Super Mario Sunshine in Japanese via the Super Mario 3D All Stars and 64 and Galaxy work fine in Japanese but for Sunshine whenever I select it in Japanese it’ll boot it to English even if I change the system settings and region to Japanese. Any help?
Make sure you’ve dumped your Nintendo switch firmware, purchased appropriate Japanese version of game and dumped it, and try everything on Ryujinx as well not just Yuzu.