This expansion includes 20 new game cards for five new action types and an Imploding Kitten. A new feature is that the direction of play can be changed. For players who forget the direction of play, this expansion includes a Shame Cone - a life-sized direction indicator. Additionally, the possible number of players can be increased from five to six with the new Imploding Kitten card. Imploding Kittens is not a standalone game and can only be played in conjunction with another edition of Exploding Kittens.