Fluffy

"Daddy, what are you doing with Fluffy?"

Fluffy has a very brief mention in the Nazi Zombie game mode. Fluffy the dog had belonged to Samantha, the daughter of Dr. Maxis and is mentioned in Der Riese by two of the radios. One radio broadcast hears Dr. Maxis giving Fluffy to Samantha he tells her that she is pregnant and is expecting puppies, Samantha asks if she can keep one, Dr. Maxis says that it will be taken one step at a time. The plan seems to fall to pieces soon afterwards, as Fluffy is secretly killed (unknown to Samantha) in an experiment by Edward and Maxis. The experiment was to have dogs the same as the human zombies. But the fatal time is when Samatha walks in to the lab to see her father, Edward leaves the room, locking her and Maxis inside, with Fluffy, who is now a Hellhound. And because Fluffy was pregnant, she gave birth to Hellhounds, thus creating more and so on. The death of Maxis and Samantha seems to be what happened, as this made everything go out of control, also the rumors of the girl who is heard throughout the game mode (as in when you get the teddy bear the girl laughs) is Samantha, who is haunting these areas, who is supposedly getting revenge due to her and Fluffy's death.

Trivia

 * Richtofen knows about Fluffy since two of his lines for Der Riese are "Fluffy is that you?" or "Oh good, you're still here. I mean, what ever could that be?" at the start of a hellround.