During November ~ December there was a Z Cap Campaign, where buyers who purchased more than 3,000 yen worth of products at select stores would receive a set of stickers, with either Supreme Yellow (transparent) or Death Metal Silver caps. The stickers were for the Wild Liger (seen here on enterpuraizu's twitter), Death Rex, and Grachiosaurus. This campaign is now over.

    This month, starting on January 15th, there's a new campaign. It's coupled with CoroCoro Comic, where users who bring in a ticket sold with CoroCoro February 2019 issue can exchange the ticket for a set of Fang Tiger blades, the Twin Fang. This is to make the Fang Liger, a Zoid that has already appeared in the comics and arcade game. You can see some images from CoroCoro here.

    The ticket also covers a set of Supreme Gold caps, which are a solid gold color.

Twin Fang & Z Cap Video