
Our reporter completes a challenging race only to face a tougher challenge — a giant rice ball!
Our reporter Masanuki Sunakoma recently found himself in Niigata Prefecture, on the western coast of Japan. Niigata is famous for a number of things, like fighting alpacas, cursed toilet paper and the Nose Hair Pond. But while all of those things are worthy of a quick visit to Niigata, Masanuki was actually there to take part in a Spartan Race, a notoriously tough race that’s both physically and mentally demanding.
The race was no joke, and required a lot of preparation, as well as strength and stamina; the course was set in Niigata’s Gala-Yuzawa ski resort, and as such consisted of many challenging slopes. As he found himself jogging along the gruelling mountain paths, with his legs on fire and his lungs screaming out for a break, there was one thing that kept Masanuki’s legs moving, one in front of another.
As the French philosopher Blaise Pascal once said, “in difficult times, carry something beautiful in your heart,” and Masanuki, whose entire body was currently very much in the middle of a ‘difficult time’, had just one thing on his mind.
Yes, the only thing keeping Masanuki going through his demanding Spartan Race was the thought of eating a Bomb Onigiri, a spherical rice ball with a variety of fillings jammed into the middle. He’d spotted a sign advertising the rice bombs near the race’s starting line at Echigo-Yuzawa station, and it had been on his mind ever since.
The store responsible for the Bomb Onigiri in question was the Yukinto onigiri shop, which we’ve covered previously. Yukinto are known not only for their generous portions, but also making their rice balls using koshihikari rice, one of the most popular types of rice in Japan. It’s short, fat and sticky and Niigata Prefecture is responsible for producing most of it.
With each step, Masanuki fell into a rice bomb trance. No longer was he focused on how much his body was hurting–instead he turned to more pleasant thoughts, like “how big will the rice ball be?” and “what filling will I get?” And as Masanuki reached the finish line, he was sure that the only reason he was able to complete the race was the thought of tucking into a delicious Bomb Onigiri when he was done.
There are two types of Bomb Onigiri — the regular Bomb Onigiri (520 yen [US$3.59] – 880 yen [$6.08]) and the Big Bomb Onigiri (2,200 yen [$15.34]). Masanuki had just run a pretty tough race and was feeling good, so decided to go for a Big Bomb Onigiri. After all, if he could overcome literal mountains, he could surely eat a giant rice ball!
All the rice is cooked fresh once the order has been made, and the onigiri was in Masanuki’s hands after about eight minutes. Even though he’d been looking forward to this all day, upon seeing it in his hand, Masanuki felt a little intimidated. Was this really a giant rice ball? It looked more like a dinosaur egg!
The Big Bomb Onigiri is made using around four cups, or 600 grams (21.2 ounces) of uncooked rice. Masanuki also got to pick five different fillings for his Big Bomb, so he went with stir-fried mustard greens, cod roe, salmon, shiso miso and braised pork.
With all the skills and finesse of a bomb diffuser, Masanuki carefully sliced the Big Bomb in two with his chopsticks to reveal the fillings.
▼ !!!
▼ “It’s huge!!”
It was an absurdly large rice ball, but it was clear that Yukinto value quality as well as quantity. The rice ball was perfectly sweet and fragrant, and the rice was fluffy and delicious; as expected of the best rice in all of Japan.
The rice ball was even better than Masanuki had been imagining mid-race, and the miso soup that came with it was equally delicious!
But…
… it was too much for Masanuki to eat in one go.
Yes, the man who had just run a pretty gruelling race up and down literal mountains, the man who was wearing a t-shirt saying ‘be unbreakable’… was beaten by a rice ball.
Masanuki took the remaining half home with him to eat over the next few meals, and decided that for next year’s race, he’d think about a normal sized Bomb Onigiri for motivation instead.
But if you’re ever in the Echigo-Yuzawa station and want to challenge the Big Bomb Onigiri, Masanuki recommends you give it a try. It’s certainly more than just your run of the mill onigiri, that’s for sure!
Restaurant information
Yukinto / 雪ん洞
Address: Niigata-ken, Minamiuonuma-gun, Yuzawa-cho, Yuzawa 2427−3
新潟県南魚沼郡湯沢町湯沢2427−3
Open 9:30 a.m.-7:00 p.m.
Images: ©SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]













Say hello to the Big Bomb Onigiri, a beast of a Japanese rice ball
Space Onigiri: Do these long-lasting Japanese rice balls taste any good on planet Earth?
Onikun: Epic onigiri so big they’re half demon, half rice ball
Japanese convenience store packs a whole bento into an onigiri rice ball
Should you warm up your convenience store onigiri rice balls in the microwave?【Taste test】
Ramen restaurant’s English menu prices are nearly double its Japanese ones, denies discriminating
10 times to avoid traveling in Japan in 2026
Here’s what our bachelor writers ate over the New Year’s holiday in Japan
Top Japanese cosplayer Enako returns to Comiket after 6 years, creates mayhem with admirers
The results are in! One Piece World Top 100 characters chosen in global poll
Giant Clodsire Pokémon plushie comes with up to 32 Woopers in super size, super cute set【Pics】
What’s a furisode kimono without sleeves? An incredibly elegant wedding dress【Photos】
The day our male reporter used a women’s restroom with other dudes and they learned about otohime
Japanese beef bowl chain Sukiya’s 2026 Smile Box lucky bag basically pays for itself
Rakuten randomly offers 58 New Year’s osechi feasts in Japan, but did we get a star or a dud?
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
Hayao Miyazaki says Happy New Year to Studio Ghibli fans with new art for Year of the Horse
Cup Noodle tries an authentic Jiro-style ramen, but something’s not quite right
The best Starbucks Japan Frappuccinos we want to drink again in 2026
We revisited Sweets Paradise after a decade to see if Japan’s dessert buffet still delivers
That time Seiji called JASRAC to ask why he didn’t get paid royalties for his song being on TV
Pizza Hut Japan’s hot lucky bags are perfect for a New Year’s pizza party
Majority of Japanese mayors say foreign residents are essential but most see good and bad effects
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Tokyo event lets you travel back in time, for free, to celebrate 100 years since Showa era start
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Sanrio theme park in Japan announces plans to expand into a Sanrio resort
Lacquerware supplier to emperor of Japan and Pokémon team up for new tableware
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Japan’s deadliest food claims more victims, but why do people keep eating it for New Year’s?
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Tapioca onigiri brings boba to the world of rice balls
The 10 best types of onigiri rice balls to try in Japan【Survey】
The polite way to eat onigiri rice balls sparks debate online
The difference between onigiri rice balls in Tokyo and Osaka
Onigiri in Paris: Small lunch shop brings traditional Japanese rice balls to France
Beyond rice balls: How to make an edible onigiri rice cat【Video】
Which Japanese convenience store has the best salted onigiri rice balls?
Japanese convenience store releases a new bento sandwich, but is it better than a bento rice ball?
Our two-day struggle to buy the cutest onigiri rice balls in Tokyo
Attack on Titan rice ball is as titanic as the Japanese anime
Will frozen bento onigiri be Japan’s next big convenience store food trend?【Taste test】
What’s it like to eat an enormous panda onigiri rice ball that weighs over two pounds?
Drinkable rice balls appear in Japan, allow you to chug the country’s favorite snack on the go
This Tokyo rice ball takes 20 years to make and 2,000 yen (US$14.30) to buy, but is it worth it?
Which Japanese convenience store has the best plain onigiri rice balls?
Leave a Reply