I Have Given Up,

counting the number of different types and flavors,

of KitKats in Japan, so I was please to find this video on a GBS page, apparently there are 400 flavors which are regional, and some were limited editions, but in any Japanese store, you'll be confronted with a huge variety of KitKat flavors. That's because part of the allure of the KitKat bar is how versatile one can make it. And that "one" is pastry chef Yasumasa Takagi, so why are KitKats so phenomenally successful in Japan? it is all down to good luck, literally, you can read the story here.