Kitty plays hide and seek with rats in the house every day. It seems like an interesting game, but it really scares the rats. To catch rats, Kitty not only sets straps but also pretends to sleep. To protect themselves while looking for the cheeses, the rats have the choice of working together or acting alone. Kitty or rats, which role do you want to be? There are 2 groups during game playing: a player plays as Katy and others play as rats. If Katy catches all the rats, Katy wins. If rats get a big cheese together or some selfish rats get cheese alone, rats win. There are 4 phases in a round: The Sleeping Phase of Kitty, The Running Phase of Rat, The Running Phase of Kitty and The Tool Phase of Rats. If Katy or Rats get the Goal of the game, they win immediately.