One of those very crappy games i somewhat enjoyed. Have to give it props for is the sword clean mechanic, pretty original, some ok bosses in there too. Of course it isnt without its questionable design choices like getting stuck on corners, the uncomfortable camera, certain enemies requiring you to be in Berserk state, the upgrade system, off the top of my head. I would recommend to play the Zombie Hunters version instead anyway.

The worse version of OG Oneechanbara. Just play Zombie Hunters or Onechanpuru instead if you really need to play these ones for completion's sake.