Shocking & Crunchy! Japanese Snack Bar Black Thunder Takes Over Family Mart

Calling all Japanese snack lovers! There’s going to be a snackfest! Japan’s beloved chocolate bar Black Thunder is getting an exciting new collaboration fair from the popular Japanese konbini chain, Family Mart. 

For those new to the world of Japanese candy, Black Thunder is a long-selling chocolate bar that's loved by Japanese snackers for its overwhelming crunchiness. Like its catchphrase suggests, Black Thunder bars have "deliciousness like lightning!" 

Dying to try Black Thunder? Choose from our Black Thunder collection on Japan Candy Store. We’ve got classic, seasonal, and limited-edition Black Thunder bars for you to taste test at the comfort of your own home! 

Inspired by the flavors of regional Black Thunder chocolate bars called "Local Thunder,"  Family Mart is releasing its largest lineup of collaboration products with Black Thunder. The konbini chain is producing 11 Black Thunder treats with all sorts of exciting flavors that'll help Japanese snackers enjoy the "lightning-fast deliciousness" of Black Thunder! 

Osaka Black Thunder Crunchy Caramel Chocolate Cookie Sandwich 

This limited-edition treat is a recreation of Family Mart's 2025 "Crunchy Chocolate Cookie Sandwich," only this time it has a crunchy Osaka Black Thunder twist. With every bite you get to enjoy the perfect combination of chocolate cookies, cream, and caramel. 

Black Thunder Mochi Zaku Chocolate Crepe

Another repeat from Family Mart's 2025 Black Thunder collab, this special crepe is chewier and crunchier than ever! Bite into a layer of chewy crepe dough and a delightful center made of chocolate whipped cream and crunchy cocoa crumble. 

White Black Thunder Cookie &  Cream Puff 

This treat is inspired by the White Black Thunder, which can only be found in Hokkaido! Not only does this cream puff have a vanilla cream center made with Hokkaido milk, but it also has crunchy cookie bits in it. The outer layer is also covered in crushed bits of chunky cocoa cookie dough! 

Kyoto Black Thunder Uji Matcha Gateau Chocolat 

Inspired by the Kyoto-exclusive Matcha Black Thunder Chocolate Bar, this Family Mart gateau chocolat features a deep matcha flavor. It's topped with cocoa crumble and drizzled with matcha chocolate sauce for the ultimate tea experience! 

Black Thunder Melon Bread

This treat combines two of Japan's favorite treats - Melon Bread, and Black Thunder. This crispy bread is filled with chocolate cream and then coated with chocolate and cocoa cookie bits to recreate the crunchy texture of Black Thunder. 

Pink Black Thunder Cookie Donut

Made with Hokkaido milk, this strawberry cookie donut has a crunchy donut made to resemble Black Thunder. It's topped with butter biscuits, cocoa biscuits, and wrapped in a coating of strawberry chocolate!

Black Thunder Chocolate Tart

This cocoa tart has a center made with chocolate batter filled with chocolate chips. It's topped with cocoa biscuits to help recreate the texture of Black Thunder. 

White Black Thunder Chocolate Cookie

Inspired by the Hokkaido-exclusive White Black Thunder chocolate bar, this cookie uses premium Hokkaido Milk. It has chocolate chips, cocoa biscuits, and it's coated in white chocolate. 

Taberu Bokujo Osaka Black Thunder Caramel Ice Cream 

Combining the milk ice cream from Taberu Bokujo with caramel ice cream and cookies, this treat tries to recreate the rich flavor of Osaka Black Thunder. 

Black Thunder Chocolate Monaka

This ice cream wafer sandwich has been a long-time fan favorite treat. Made with cocoa mass and cocoa powder, it has a rich chocolate flavor. The filling has a layer made of two types of cookies to recreate Black Thunder's crunchy texture. 

Bite-Sized Black Melon Panda 

Made with fermented French butter, the Black Melon Panda is a bite-sized Black Thunder chocolate sweet inspired by the taste of Melon Bread. 

With 11 exclusive Family Mart treats to choose from, Japanese snack lovers are certainly going to have their crunchy fill of Local Black Thunder. From cookies to cream puffs to ice cream wafers, everyone can get the chance to relish in the crazy crunchiness of Black Thunder. 

Which Black Thunder x Family Mart snack are you dying to sink your teeth into? Are you craving the crunchiness of the Osaka Black Thunder Crunchy Caramel Chocolate Cookie Sandwich? Or maybe you’re drooling over some Black Thunder Melon Bread? Feel free to rave all about Black Thunder in the comment section below! 

No ticket to Japan? No problem. Check our Black Thunder collection to nab some of the latest and hardest-to-find Black Thunder chocolate bars from Japan!