Dr. Minamida should come back with a new version of his Inner Fighter machine but this one allows the user to travel through different places in time so we can go to prehistoric times and punch out sabertooth tigers or to the future so we can have a proper team up with Dan Marshall and fight Hollow children(and not be in the multiplayer for the JP version)
Also as for playing games in Japanese, I never found it so daunting that I couldn't play anything, not only the RGG games but games as well, all it takes is some patience(guides can help a lot if you are depending on them), of course that really varies with the person as some people even when something is in a language that they can understand and on the screen or being said to them they still don't know anything.