The return of the Great Old One promises to wreak havoc on Tokyo and New York where the scenes of madness are multiplying. Even the other Monsters present on the scene could well sink into madness... And you, will you be mad enough to answer his Call? A micro extension that brings new subtleties to the mechanics of the two base games. Compatible with King of Tokyo and King of New York games. Contains Evolution cards for King of Tokyo and King of New York for use with the Power Up expansion!