Burger King® Adds Two “Guilty” Burgers to the Big Mouth Series
Starting Friday, October 2, 2026, Burger King® Japan, operated by BK Japan Co., Ltd., will release two new burgers from its popular Big Mouth series for a limited time: the Double Beef & Bacon Big Mouth Guilty and the Beef & Double Hash Big Mouth Guilty. Both feature fragrant, flame-grilled 100% beef patties paired with a “Special Garlic Sauce” made with three types of garlic, delivering a bold, indulgent bite.
On the same day, the Cheese Chicken Nuggets side also return for a limited time.
The “Special Garlic Sauce” Made with Three Types of Garlic
What the two new burgers share is the punchy “Special Garlic Sauce.” It combines garlic paste, fried garlic and garlic powder, so the garlic kick comes through from the very first bite. Please note that the sauce contains spicy ingredients, so take care if you are sensitive to heat.
Double Beef & Bacon Big Mouth Guilty
This hefty burger stacks two flame-grilled 100% beef patties with four slices of rich cheddar cheese and four slices of smoky bacon. Pickles and onions add an accent, and the whole thing is finished with the Special Garlic Sauce. From the first bite you get the punch of garlic plus the volume of double beef and bacon, making it a truly guilty double-beef burger.
Product Details
- Release date: From Friday, October 2, 2026 (limited time)
- Single item: ¥1,640 (tax included)
- Set: ¥1,940 (tax included)
Beef & Double Hash Big Mouth Guilty
A flame-grilled 100% beef patty is layered with four slices of rich cheddar cheese, accent pickles and onions, plus two fluffy hash browns, creating a big, filling burger. It is also finished with the Special Garlic Sauce, so you can enjoy the garlic punch alongside the heft of flame-grilled beef and two hash browns. It is a great pick if you want beefy flavor and fluffy potato in one bite.
Product Details
- Release date: From Friday, October 2, 2026 (limited time)
- Single item: ¥1,390 (tax included)
- Set: ¥1,690 (tax included)
Set Contents and Which One to Choose
Both sets come with French fries (S) and a drink (M) and cost ¥300 more than the single item. Go for the Double Beef & Bacon if you want maximum meat and bacon, or the Beef & Double Hash if you enjoy the combination with hash browns.
Rich Cheese Chicken Nuggets Return for a Limited Time
From Friday, October 2, 2026, the Cheese Chicken Nuggets, made with rich cheddar cheese kneaded into the mix, are back for a limited time. This flavorful side combines juicy chicken breast with rich cheese. This time, the large 16-piece order is offered at a special price of ¥810, ¥150 off the combined price of ¥960.
Prices (tax included)
- 5 pieces: ¥330
- 8 pieces: ¥480
- 16 pieces: ¥810 (special price)
Sauce Options
- BBQ Sauce: deep, smoky flavor with a hint of astringency
- Mustard Sauce: gentle sweetness with a touch of acidity
The 5- and 8-piece orders come with one sauce, and the 16-piece order comes with two. Extra sauces are ¥40 each. The 16-piece order is limited to two per transaction.
Important Notes
- At stores serving breakfast, the two Big Mouth Guilty burgers are available from 10:30 a.m.
- Some stores do not carry these items, and sales hours vary by store
- Sales may be temporarily suspended depending on store conditions
- All prices include tax. Product specifications and prices may change without notice
The new burgers and the Cheese Chicken Nuggets are not available at the following three stores:
- Burger King® Tokyo Racecourse (Fuchu, Tokyo)
- Burger King® Kyoto Racecourse (Fushimi-ku, Kyoto)
- Burger King® Kansai International Airport Terminal 1 (Izumisano, Osaka)
Summary
The two new Big Mouth series burgers combine a Special Garlic Sauce made with three types of garlic and the heft of flame-grilled beef, available for a limited time. The press release does not specify an end date, so check your local store early if you are interested. Pair them with the rich Cheese Chicken Nuggets and open wide for a truly guilty treat.
Source: press release by 株式会社ビーケー・ジャパン (PR TIMES, in Japanese)