V is for Vagina was built of an array of such fun, accessible tunes that a remix album was inevitably going to be more complex and challenging than the original. And it is: Viagra is noisier and more dynamic, and can't be appreciated purely for the ingenious simplicity that Vagina exhibits. Fortunately Viagra taps into the energy of that noise and dynamism in almost every track, and the album flourishes. It's notable that two of the brightest gems in the collection, Cuntry Boner: "Dirty Robot" mix and Trekka "The Great Unwashed Mix," are noisy enough to hangout with some of the best Nine Inch Nails remixes. Sure, there are a few disappointments; the opening Indigo Children "JLE Dub" mix deviates from the original so little (other than extra background noise) that it fails to generate energy of its own. But these moments are painless at worst, and certainly don't take away from the pleasures that this solid remix album has to offer.