Well they do actually, and often very painfully as can be witnessed in the video for SNK's latest foray into the the Samurai showdown series found in Dale North's blog here> http://www.destructoid.com/gdc-08-snk-playmore-is-the-king-of-fighters-72278.phtml

Its looking pretty good! (Though i am slightly more impressed by the latest KoF)
The one hit kills look paticulary cool! But they did remind me slightly of a game I played many moons ago on the original PS called Bushido Blade.



I was totally hooked on this game when i was younger, though it did have its faults, most of these, as can be seen in hindsight, were down to the limitations of the console(Such as the loading between each segement of the huge fighting area)

One of the best features of the game was that you could injure specific parts of your opponent during battle resulting in them using thier other hand to fight with, right up to fighting in a prone position becuase you've hacked at their ankles.

Heres a couple of videos showcasing the huge map and general gameplay (contains spoilers :P)





It does'nt look like much now but i'd love a remake/sequel on current gen consoles.