“Jump back, kick back, whip around and spin … and then we jump back, do it again!” If you were like me, who grew up coveting every Lego Ninjago dragon I built, you might remember hearing these lyrics ...

Ninjas have never been out of vogue but between last year’s Turtles animated feature “Mutant Mayhem” and the recently-released Netflix series “House of Ninjas,” it’s fair to say they’re having a ...