Mattel Pixel Chix Secret Life of Pets Puppy Girls control their Pixel Chix Pet by pushing the buttons on their house. Each of the buttons is dual-sided so girls can perform different functions depending on what mode they are in. The pets' secret life is revealed when girls turn their Pixel Pets? house upside down and watch the pet transform into the ultimate rock star! Girls can plug the pet's house into an MP3 player and watch their pet dance to the beat of the music! There are different levels of play so the more a girl plays the more surprises she will unveil including secret passwords to unlock surprises on the upcoming Pixel Chix? website.