They are Kit Kat flavor crazy.
A lot of fruit flavors, certainly.
I have tried
Green Tea
Strawberry
Blueberry (yum!)
Caramel Macchiato;
I have not tried yet (in most cases because I can't find them)
Sakura (aka Cherry Blossom)
Peach
Cantaloupe
Kinako (soybean flavor)
Muscat
Soy Sauce
Pumpkin
Some of these may have been limited editions (they do that a lot with stuff in japan) so I may never get to try them.
This is only a partial list, btw.