Seiko recently completed its second Incredibly Specialized Watch Exhibition, where the Japanese watchmaker sets its designers loose to create, um, incredibly specialized watches. What is an incredibly ...

A ninja gym here is now open throughout the year, offering hands-on training experience in "shuriken" throwing, gunnery and other skills. The city is known as home to the Iga ninja clan ...

"I created a sport by putting modern twists on an ancient art of shuriken throwing or ninja star throwing," said David Nemeroff, owner of Aikido Masters Self Defense Academy and founder of the league.

Use the ninjustsu. Then, do a wall jump, and then right about when your head hits the ceiling, throw a shuriken at the same time. If you have the fire button right next to the jump button ...