Walmart offers the Zoomer Interactive Dino in Green or Purple, model no. 20063696, for $64.97 with free shipping. (Amazon charges the same for Green.) That's $5 under our mention from three weeks ago, the lowest total price we've seen, and a current low by $15. It requires three AAA batteries (not included) and can detect nearby playmates, get angry, spin around, chomp, and roar.