You may remember others in the come back campaign such as the Premium Kuro Burger (黒バーガー) that made an appearance in September this year.
The Whopper is Burger King’s most famous menu item and to this they have added two of the top three most popular toppings for this year, bacon and egg. The egg is meant to represent the new sunrise rise at Burger King. As a thank you present for the end of the year, Burger King will have this special holiday Whopper at a special price. The burger itself will be 430 yen, while a Mセットwill be 790 yen.
Visit the Burger King Japan website for more details