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Difference between the music video versions:
-We had an HD raw for the normal version.
-I bought the Ikusa/Battle first press version which came with the Battle music video. This version focused on the fighters. This is just a DVD so there's no HD version for it.
-I didn't pick up the Oni/Kiryuin version because I had no idea what it was. But I think it'd be safe to say it's the version that focuses on the singer, so screw that.
Life is showtime wiki article