The crowd-pleasing Samurai Beef Burger is available with single or double quarter-pound beef patties, which are slathered with teriyaki sauce, mayonnaise and a heaping of lettuce. 

For those who don't eat beef, three's also the Ninja Chicken Burger, which comes with charcoal buns and a single chicken thigh patty drizzled with sweet nanban sauce and tartar sauce, plus shredded white cabbage and cucumber slices. 

The fast food chain's tasty seaweed seasoning for its fries is back on the menu too.