This is an official trading card set. I recall that it was a limited release of several thousand to tens of thousands of boxes at the time of its release (I believe it was limited to 15,000 boxes). In Japan, there are few people selling these, so I think they are quite rare. Contents: Character cards: 18 80's retro poster-style cards: 14 Lenticular cards: 9 A complete set of 41 cards in total. This series was difficult to complete with just one box, as there were only 4 packs per box and 8 cards per pack.