Bakumatsu Roman Daini Tobari: Gekka no Kenshi

AKA The Last Blade 2

Samurai fighting game = teh rawk

Especially when it has drunken-style bokken fighters, and undead ninjas.

At least I think Mukuro is a Ninja, far better than he was as Shikyoh.

Plus, it has the super speed mode combo attack, which is just insane if you're good at it.