The Ground Drone is a very dangerous enemy in my solo-dev game, EXOCAGE, being extremely durable and armed with a large blade on the front, a gun turret hidden inside it's frame, and quick movements.
Idle
Walk (front and back legs alternate, rather than typical bipedal walking)
Attack 1
Attack 2 (heavy)
Aim
In-game meeting between an already weakened and weaponless Exocage.