Too Much
Completing this game is IMPOSSIBLE. It simply cannot be done. Maybe, if the Asshole Samurai wasn't fighting you alongside Pico AND Nene, you would stand a chance.
Don't bother playing if your only goal is to complete it. You WILL NOT succeed.
I'm not going to bother saying anything about this game, simply because pretty much everything positive has been said. Fuck you for making that battle too hard.