An impressively authentic statement; the only reason you'd be able to tell that this is so recent in a blind test is the production values, which are clean and modern enoguth to distance its from the genre's innovators. Otherwise, this could easily have come out of Jamaica in the late '70s - which seems a pretty ridiculous thing to say about an all-female Japanese band in 2009, but it's true none the less. I'd even go as far as to say - with the caveat that I'm not expert - that "Kunoichi" is one of the best dub tracks I've heard, and the arrival of its sweeping sawtooth synth is a moment fit to match anything I've heard in reggae.
"Attack Dub" and especially "Counter Attack" are pretty goofy - both run off the same original, and truthfully, it's just not very good. That aside, this is a top notch record.