The King Kong Monster Pack adds new elements to two game: Tokyo Tower for King of Tokyo and the Empire State Building for King of New York! Evolution cards let you play King of Tokyo and King of New York with supercharged monsters! King Kong's Evolutions work like the Evolutions in King of Tokyo: Power Up! and King of New York: Power Up! To play with King Kong's Evolutions, you need the Power Up! expansion for whichever base game you have.