The shadow dogs, though supernatural in nature, didn't do much damage. Their ebony fangs did sink into the metal however, which would surely leave behind little pinprick indentations of their teeth. Which was more of a mark than the police's bullets had been able to leave and more than enough to finally catch the robot's attention. The robot stopped in its tracks and the lights on its body shifted to red as it turned its faceplate downwards, spotting Sam's summons. It lifted one leg and attempted to shake the shadow creature off, not noticing that it was a pincer attack and Sam was coming in for the second hit. Like a hot knife through butter, the blade left a deep scratch along the side of its head. With such a powerful swing, the sword managed to slice all the way down the protective neck plating before catching against one broad metal shoulder and becoming slightly embedded in it. This was definitely more noticeable than the little ankle biters. The robot's attention quickly shifted to the human attacking it. With surprising dexterity, it reached up and grabbed for him with one of its massive hands in the few precious seconds it would take for Sam even attempt to dislodge his blade. A hand that was big enough to completely encompass his entire body and crumple him in its fist like a ball of paper if it succeeded.