In my opinion there should be more weapons than just swords. You don't really have to use breathing with them and just melee. But more Japanese weapons would be cool..
EXAMPLE:
-
Bo-Staff: A weapon that kinda looks like a stick. Used in old Japan times to carry buckets.
(Medium) -
Kusaigama: kind of a mini scythe with a chain on it and a ball at the end of the chain
(Light) -
tetsubo: a bat like weapons without lots of stubbed silver ball on it.
(Heavy)