Originally Posted by
abmj-jr
Many of the really "interesting" flavors are limited time, promotional items. As such, they are often not all available at the same time. Many of the times I have visited, I have found something new, only to never see it again.
And region specific. For instance red imo (sweet potato) in Kyushu and Okinawa.
http://nestle.jp/brand/kit/product/