This depends on what class you pick (Shogun and Mercenary are intentionally broken for fun). It's true that attacking the head is incredibly viable, as it should be, and damage is intended to be incredibly high to simulate the effect of one-shot kills. If you want a different experience, try playing a class that doesn't use a bladed weapon. Also, did you try going for the head for 30 fights in a row in the Kumite Mode? I'd like to see you successfully beat that mode by only attacking the head. That would definitely prove your point. And I'll look into the invalid command damage bug. Thank you for playing.