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View allA thunderbolt of flavor
Crunch with every biteJapan's Yuraku Black Thunder — a chocolate bar combining cocoa and crunchy biscuit pieces, «おいしさイナズマ級» (a thunderbolt of deliciousness). A bold flavor beloved by young people.
Crispy chocolate's thunderbolt taste
Black Thunder is a popular chocolate bar from Japan's Yuraku Confectionery. Under the slogan «おいしさイナズマ級!» (a thunderbolt of deliciousness), it combines cocoa with crunchy biscuit pieces to create a distinctive creamy-crunchy taste.
With its low price and bold flavor, it has won a devoted following among Japan's youth. With many flavors such as classic, strawberry and nut, it appeals to everyone and delivers a “thunderbolt” sensation with every bite.
The thunderbolt flavor range
From classic to strawberry to nut — every flavor has its own thunderbolt.
7+ Many flavors and sizes
Bite-size
Bite-size 43g
Crunchy chocolate pieces — a single-serving treat.
53gSIZE
Strawberry
Strawberry 53g
A pink strawberry-flavored version — a refreshing fruity taste (いちごのサンダー).
62gSIZE
200Chocolate intensity (bite-size)
Bite-size
Bite-size 62g
Chocolate intensity 200%+ — small bite-size pieces in a bag perfect for sharing.
Nut
Almond & hazelnut
With almond and hazelnut pieces — a crunchy, indulgent nutty taste.
113gSIZE
Strawberry
Strawberry mini bar 113g
A strawberry mini bar pack — a large size for sharing and enjoying together.
139gSIZE
Mini bar
Mini bar 139g
A pack of small mini bars — chocolate to share with family and friends.
A thunderbolt with every bite
Crunchy texture
Crunchy biscuit pieces paired with creamy chocolate for a special sensation in every bite.
Many flavors
Many flavors such as classic, strawberry and almond-nut — a different choice every day.
Loved by young people
Affordable, tasty and bold — a treat with a devoted following among Japan's youth.
Compact sizes
From a single bar to a large pack — easy to carry at home or on the go.