What kid doesn't love discovering a secret message? But the message featured in the ad in the video above is no game. In an effort to reach out to abused children, the makers of the ad - a Spanish organization called Aid to Children and Adolescents at Risk Foundation (ANAR) - asked themselves how they could get their message across to children, even when they're accompanied by an adult. The solution? An ad with an image that varies based on the height or perspective of the person looking at it.