Mushroom Whopper Jr.

マッシュルームワッパーJr. · ¥590 (~$3.74) · 395 kcal

The small version of the autumn burger, which the press release describes as the handy size. Set ¥890, LL set ¥1,040. 395 kcal for the burger alone. Like the other two, it sells from 10:30 at stores that run the morning menu.

Image © Burger King Japan, shown to identify the product. Price checked 2026-10-04; prices are the tax-inclusive yen figures Burger King Japan's own web menu (burgerking.co.jp) showed on the check date, which its legal notice page (特定商取引法に基づく表記) and campaign notes state are tax-inclusive; the single-item price is given, with set prices (fries S and drink M) in the blurb; the site prints a tilde after a price when larger variants exist; some items are not sold at a few named stores and limited items carry no end date.