Hyper Sticker Collection was a collection of stickers released to promote the series.
The sticker collection contains 100 stickers of various characters from the series. The stickers contained a brief summery of the characters. They were sold in shops in boxes of 30 packages, each with 10 stickers in them. They were sold in 1998 and 1999 and were official merchandise, carrying a sticker on the packets.
They were sold only in Japan.