Google-owned robotics firm and "nightmare" factory Boston Dynamics has released video of its latest creation: a two-wheeled, four-legged hybrid robot named Handle.

The robot can stand on four legs, like Boston Dynamics' previous creations such as BigDog and Spot. But at the end of its back two legs are two stabilised wheels, which let it stand up vertically and roll around at speeds of up to nine miles per hour. Think "Terminator riding on a hoverboard" and you'll have a pretty good idea of the impression Handle gives off.

Boston Dynamics says the reason for the hybrid design is the simplicity it affords: rather than needing the complex joints of the fully-quadrupedal bots, Handle's wheels can speed it around with little difficulty, while its front legs can be used for balance and for carrying loads of up to 50kg.