"Hattori Hanzo Shaolin masters of the Praying Mantis grind style." That was Hattori Hanzo's original Bio when they formed in early '06, and they stuck to their prime objective. HH were a U.K. grindcore with hardcore diy ethics.
After their split in '08 various HH members went on to join Test Switch Isolator, start black metal/noise label 'Dead Wood', form The Decline, producing and have kids. There is an another artist called Hattori Hanzo that requires further information.