I'm a huge Goemon fan so this is a hopeful release for me, but I think it's important to consider one thing: This is a Japanese game, and it was released in America almost a year later from the Japan. If this turned out to be the American version of the game(it's listed as Mystical Ninja rather than "Ganbare Goemon", so maybe it is?), then I fear it's likely this won't be much more than a simple preview build of the English translation of the final product. 

I know by reading the main topic that drx can't get the specifics for every game, but maybe just asking DreamTR he might be able to just quickly recall if it was US or JP for us so we can be better assured. Then again, maybe it's only me who's concerned about this...