The Coming of the Quantum Cats can - given different social conditions - develop completely different character traits (timid or assertive, benevolent or predatory, etc.) The title refers to the famous thought-experiment known as "Schrödinger's Cat", where the outcome of a real-world event depends on a quantum event. By some interpretations, the real-world object, in this case a cat, must be in two states simultaneously until it is observed. However, the story is more closely related to the many-worlds interpretation of quantum mechanics where all possible outcomes of an event occur, each in its own parallel universe. The same concept was treated, somewhat more pessimistically, in
Kasumi (Dead or Alive) in her standard fighting outfit on the other. "Dead or Alive 5" pre-order bonuses included an exclusive Kasumi-themed iPhone case from the online retailer ShopTo.Net. Merchandise released for "DOA5" include another Kasumi-themed 3D mousepad and body pillow cases. Kasumi was featured on the covers of "Dead or Alive 5 Postcard School Calendar 2013" and on 2005's comic anthology companion for "Dead or Alive Ultimate". "Dead or Alive 5 Ultimate" "Kasumi-chan Blue" limited edition includes Kasumi-themed 3D mousepad, playing cards, lifesize tapestry and bath poster; the game's collector's edition also contains a Kasumi 3D mousepad and playing cards. She is one