If you walked into a Burger King in Japan this week expecting the usual Whopper lineup, you may have done a double-take at the register. Starting May 1, the chain began serving the Second-generation Baby Body Burger — a five-patty, eight-cheese-slice monstrosity created in collaboration with the Japan Sumo Association, and it is not messing around.

The burger runs 2,890 yen by itself (roughly US$19) or 3,190 yen as a combo with fries and a drink — a steep ask even by Tokyo standards, where a Big Mac set hovers around 800 yen. But Burger King Japan isn't selling convenience here. It's selling spectacle.

Built like a rikishi

The sandwich weighs in at 661 grams and delivers 1,856 calories, which is most of your daily recommended intake in a single sitting. Inside the bun: five flame-grilled 100% beef patties, eight slices of cheddar cheese, four strips of smoky bacon, pickles, onion, ketchup, and mustard. It's not subtle. It's not meant to be.

The "Baby Body" moniker is a cheeky nod to the physique of sumo wrestlers — specifically the softer, rounder builds of younger rikishi still bulking up in the lower divisions. This marks the second time Burger King Japan has partnered with the Japan Sumo Association on a limited burger, following the debut collaboration roughly a year ago in summer 2025. The 2026 version ups the ante with double the cheese compared to the original's four slices, per press materials reviewed by Oshigo.

The release coincides with the spring sumo tournament season, which kicked off at Tokyo's Kokugikan arena in mid-May — a strategic tie-in that underscores Burger King's ongoing sponsorship deal with the association. You'll even get a limited-edition sticker featuring kanji calligraphy and the tsuna (the braided belt worn by yokozuna grand champions) with your order, while supplies last.

How to actually eat it

Burger King staff actively recommend ordering the "half cut" option at the counter, which splits the burger in two for easier handling — a tacit admission that no human jaw was designed for this. SoraNews24, which taste-tested the first-generation version in 2025, described the experience as "meeting the meat wall with childlike glee" before needing to lie down.

The burger is available at most Burger King Japan locations, excluding the Tsugaike Snow Square branch in Nagano and the Tokyo and Kyoto Racecourse stores. Sales run while supplies last, and given the hype around last year's drop — which sold out at multiple locations within weeks — you'll want to move fast if you're curious.

Worth noting for budget-conscious eaters: at nearly 3,000 yen for a combo, you're paying roughly four times what a standard value meal costs at McDonald's Japan. The spectacle premium is real. But if you've ever wanted to feel like a sumo wrestler gearing up for a tournament — or just wanted to tell your friends back home you ate a burger the size of a small child — this is your window.

Sources