Walmart offers the WowWee Remote-Controlled Mini MiPosaur Dinosaur Robot, model no. 3890, for $14.97. Opt for in-store pickup to avoid the $5.97 shipping fee. (Kmart charges about the same, also via pickup.) That's the lowest price we could find by $5. This remote-controlled robot features dual-action driving capabilities and an LED light. It requires one CR2032 button cell battery (included) and two AAA batteries (not included).