Game Of Thrones’ Battle Of Hardhome was, without a doubt, the biggest throwdown in the fifth season of the HBO show. And now, Spanish VFX company El Ranchito has deconstructed the whole thing, demonstrating how the show used green screens, neon spandex, and other effects magic to convince viewers that nothing is more terrifying than thousands of wights attacking the Wildlings and the Night’s Watch as the White Walkers watch atop their undead horses.