Well, it seems less threatening than the ED-209.
Via Laughing Squid
The Knightscope K5 Autonomous Data Machine is an mobile robotic security guard with a slew of built-in sensors designed to patrol and monitor an area. The egg-shaped rolling robot has GPS and laser scanning built-in and utilizes prediction algorithms and social analytics to identify and assess potential concerns. Data collected by the robot is also made public to help crowdsource those predictions. Knightscope's creators plan to charge an hourly fee to rent the robot that will likely significantly undercut the going price of their human counterparts.