Entertainment walking robot that feeds on batteries

A biomimetic entertainment robot called ELIRO-II(Eating Lizard RObot version 2) is proposed that includes an autonomous eating function based on the instinctual behavior of an animal that wanders around looking for food and eat food by itself. ELIRO-II is modeled on a lizard, with four legs, a 2-DOF waist-joint, eye part, mouth part and stomach part. Each component is also designed based on the natural world, i.e. eating food(=batteries) using a tongue, walking with a side to side swinging body motion, and stacking food in the stomach(=pack).