The opening minutes of Onimusha: Way of the Sword are glorious, in the sense that they’re utterly shambolic. Wandering ronin Musashi wakes up under a bridge, belts a wrong-footingly British “WOT?!” at some starving urchins eyeing up his rice ball, then proceeds to be chased around a muddy village by what feels like two thousand martial arts students, only occasionally stopping to boot a wooden plank into their faces or scoop up an imperilled dog. It’s goofy and brash and…