also is it possible to get full compatilbilty with these games, but still have an enlgish UI, dnt care if the OS Is in Jap or wat eva but yeh any good ways?
Just switch your computers locale to Japanese , everything should stay in English but when you try to install some programs the instructions will be Japanese . im running a full jap OS so im not prompted with any errors .
or you could try app-local or anything similar , but i don't use that so i wouldn't be of any help.