For Prime member only, Amazon offers the Zoomer Dino Indominus Rex for $42.95 with free shipping. That's $4 under our mention from November and the lowest total price we've seen. (It's a current low by $27.) It responds to hand movements via IR nose sensors and can be programmed to perform combination movements via the included remote control. It features sound effects and color-changing eyes and requires three AAA batteries, not included.