So, I have received the game last week for review purpose, and I must say, if there's one thing that bothers me about this game is the weapon selection. Early in the game, you'll acquire the pole-arm. So, it basically replaces your ''heavy'' attack modifier with new attacks and all. It's great.
Problem is, when you get the Sai, there's literally only one move with it, which is basically a ''yanking'' move that allows you to reach your opponent quicker. Sure, it stuns your opponent, but that's it. I scratched my head, a bit confused, and kept on playing. I then unlocked the dual blades that combines into one giant scissor. And guess what? Three moves with it. None of them link with your light attacks like the pole-arm did.
So, really, none of these weapons, except the pole-arm, are even worth touching. Sure, you can upgrade their damage ( even the Sai ), but that's it. You can learn a new modifier or two, but no combos or anything.