This expansion provides players with a set of mini modules, each adding a different species of zombies to the game. These special species modify the entire horde they are part of inside a room. However, before these type of zombies can be defeated, all other zombies in the room must be eliminated, as the other zombies in the horde will protect this more powerful species. The following zombie species are introduced: Disco Doll Zombies - The horde can move 3 instead of 2 tiles Guts Zombies - One bite result of the horde cannot be dodged by a defense roll Chunk Zombies - Horde can only be defeated in close combat Tuff Guy Zombies - You need 2 hits to kill the zombies in this horde.