It might look like something from Star Wars, but WildCat – a four-legged robot being developed to run fast on all types of terrain – has no machine guns or lightsabers attached (yet).

Developed by Boston Dynamics, so far WildCat has run at about 16 mph on flat terrain using bounding and galloping gaits. This video shows WildCat’s best performance to date.

If┬áthe next prototype looks anything like Arnie we’ll know it’s time to panic.