The Rat Clan is a group of rats that gained the ability to transform into human. Their HQ is called Club-Q. They dress up like we do and act like deliquents. They have also been known to take care of orphaned kittens but they hate cats in general. The head of the Clan is the Rat Clan Boss and is consisted of Rat Clan Koko and Rat Clan Henchman (these are the only members known). Koko created a straw poll for the other members of the Rat Clan. They all appear in the event "Welcome to the Halloween Tower". Rat Clan Henchman dressed up as a devil, Rat Clan Koko dressed up as a nurse, and Rat Clan Boss dressed up as a mummy.