Wolverine vs biker ninjas

ME, I always have time to watch Wolverine slice through all manner of stuff with his on-demand adamantine claws. But in the (Japanese language) trailer for Marvel's upcoming The Wolverine, there's a hint of him slicing up ninjas. And not just run-of-the-mill ninjas, but motorbike-riding ninjas! (Though sadly not Ninja-riding ninjas!). Nuff said...