Quoted from highdef:
This is not a nitpick or gripe whatsoever, but I do wish the artwork had some Japanese language (not just the OSD). Of course, I understand why it's in English. For example, it would be awesome if you could flip over the English apron insert cards and have them in Japanese. It would've been a cool touch. Perhaps someone will create Japanese versions. Anyways, many props to Spooky for offering a Japanese gameplay option. I can't wait to see & hear it.
In the Collecting All Monsters podcast interview, the Spooky folks said the voice actor they hired did call outs in both English and Japanese for them, fwiw -- they clearly were strongly interested in paying respect to Japan in the interview, so I am guessing there's going to be a way to at least turn the callouts on. That's not a localized version, of course, but it's something.
Did y'all know there's already been an Ultraman pinball machine? My friend Kevin saw one, I think, when he did a pilgrimage to a collection of native-manufactured machines in Japan some years back. Here's the IPDB entry.