Ultimate Big Chill is the evolved form of Big Chill.
He was voiced by Dee Bradley Baker who also voiced Diamondhead, Chromastone, Wildmutt, Terraspin, Swampfire, Humungousaur, Jetray, Echo Echo, Spidermonkey, Water Hazard, Armodrillo, NRG and Four Arms.
Ultimate Big Chill's wings and antennae have a flame design. He has crests over his eyes with the same design.
Ultimate Big Chill can make his wings and antennae fold into a cloak like Big Chill can, which looks no different from Big Chill's cloak, except for being red.
Ultimate Big Chill wears the evolved Ultimatrix symbol on his chest.
Powers and abilities
Ultimate Big Chill can become intangible, manipulate ice, fly, and breathe ice like Big Chill, but can create "ice flames", which he describes as "fire so cold it burns".
These flames are plasma beams that consume the heat of whatever they touch and use that energy to burn. Ultimate Big Chill's breath and beams are both stronger and colder, capable of instantly turning the air around him and his enemies into solid ice. In fact, his ice breath is comparable to blizzard winds and it spreads farther than the breath of his normal counterpart.
Ultimate Big Chill can breathe or shoot flames from his hands that turn into blue ice when they hit a target. This form of ice freezes the enemy much faster than Big Chill's ice breath.
By inhaling deeply, Ultimate Big Chill can lower the temperature of the air he breathes in, because he sucks the heat out of objects, freezing anything that happens to be in its path.
Ultimate Big Chill is also capable of much faster flight than his previous form.
Like Big Chill, Ultimate Big Chill can also survive in a variety of environments, including the vacuum of space, extreme heat, intense cold, and deep oceans.