For years Lotte packaged chocolate wafers with collectible stickers. The original Bikkuriman line had guardians, angel, and devil stickers. Flashy foil lined stickers were rare items. Kids would trade these in Japan similar to how baseball cards are traded in the States.
Lotte’s next line of Bikkuriman drop the original characters in favor of Disgaea all-stars. Laharl, Prinny, Etna, and Almaz have been redesigned in the Bikkuriman style for a new line of Disgaea stickers. A sticker is included with each Bikkuriman snack. There are 40 to collect and Lotte made a little game where you can power up stickers by combining them. The Disgaea x Bikkuriman line comes out on August 24.