From the former NASA robotics physicist that developed Robosapien, Roboraptor comes to life with his advanced artificial intelligence personality, realistic biomorphic motions, direct control, autonomous (free-roam) modes and the following features: Fluid bi-pedal motion, such as walking, running and predatory gaits; realistic body movements, including turning head and neck, whipping tail actions; three distinct moods, such as hunter, cautious and playful; autonomous environmental interaction to respond with mood specific behaviors and sounds; mood dependent behavior, such as aggressive/hunting mood, nervous/cautious mood, friendly/playful mood; multi-sensory, including touch sensors in his tail, chin and mouth, sonic sensors; infra-red vision system to detect objects in his path, or approaching him; powerful jaws that play tug-of war games, ?bite? and pull; ?laser? tracking technology, so you can trace a path on the ground and he?ll follow it; visual and sonic guard mode; responds to commands from Robosapien V2; auto shut-off function; video game style controller; demonstration mode; 40+ pre-programmed functions. Battery Requirements: 6 X "AA", 3 X "AAA" (not included).