"Surprise Man") became wildly popular in Japan with the introduction of the Devil VS Angel Seal (悪魔VS天使シール, Akuma vs Tenshi Shīru) series of stickers, leading to a prolific number of media tie-ins.

Each Seal featured a realistic image on a clear background, with the intention of using them for pranks or gags (broken glass, clothing tears, fake wall switches, etc.)

While maintaining the same humorous art style of the earlier series, the Akuma vs Tenshi Seals featured characters based on assorted mythological, folklore, and even metaphorical sources engaging in an overarching story-line.

The zeal to try to obtain Head Seals would lead children to buy Bikkuriman in mass quantities, retrieve the stickers inside, and simply throw away the snack.

This, along with the fact that children and collectors were willing to pay high amounts of money for the rarer cards, led to parent groups expressing concern of possible gambling implications for the stickers.