Board Thread:News and Announcements/@comment-9091559-20150713082510/@comment-24659969-20150725063453

Heliskyoh wrote: I always use Total Nyan and Evangelist, instead of the one in Nekoluga family and Crazed Gross Cat. Those Cats still sit there in the game data, so they are "Hidden Cats".

No one knows how to unlock Metal Cat, but it appears in the CatCombo book.

I though metal cat was something appeared in a promo / campaign image. I believe it was drop from cosmic cyclone perhaps?