there is already a torrent(magnet link) for the game rip and for the full game:
http://btdigg.org/search?info_hash=&q=Rondo+Duo+-Fortissimo+at+Dawn-+PunyuPuri+ff
if that does not work, you can copy the magnets below directly into utorrent(starting with "magnet").
direct magnets:
full game...