"It doesn't look like it can climb. I don't think it can even use stairs. But it does look like it can aim upwards," Yamato says, frowning, as the robot stops firing and seems to take a moment to recharge, scuttling across the factory floor and keeping Barry in its sights.

"Try throwing something at it. I have a suspicion about what that thing around it is," he says. "You know, just based on how it's built to kill specifically you."