"XT Garlic Beef" is a hamburger that uses 100% "ultra-thick" beef patty, which weighs about 155 g, as the name "extra thick" = "ultra-thick", which is the origin of the product name "XT". Two kinds of sauces are combined with beef patty baked on a direct fire, and this is also said to be a luxurious finish with "ultra-thick" sliced grilled onion, garlic slices, and cheese layered and sandwiched between buns. The single item price is 590 yen.
"BK Quattro Cheeseburger" is a hamburger that combines cheese and cheese sauce with pork patties seasoned with several kinds of spices and baked over direct heat. Two types of cheese are used, "Colby-Jack" and "Cheddar", and two types of sauce are rich "cheese sauce" and "pepper Caesar sauce" with cheese. It seems that you can enjoy the luxurious taste using 4 types of cheese. The single item price is 320 yen, but it will be 200 yen only during the trial period from December 2nd to December 8th.