Yes, but the thing is most Japanese hackers are very reclusive and don't want their stuff to be distributed outside of their community, some Japanese sites even have English text written in big red letters saying "Do not redistribute". This, and the uploaded not being Japanese, makes me think it's really unlikely he got permission from the creator. I could be wrong though, but as I said, that's really unlikely.
It'd be nice to have more hacks and all, but we must respect the creator's wishes.
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