He can still become intangible, manipulate ice, and fly like his original form. Instead of breathing ice, he can create "ice flames" (actually a heat-draining plasma beam), which he describes as "fire so cold it burns." Dwayne McDuffie described them as flames that consume the heat of whatever they touch, and use that energy to burn. He can breathe flames or shoot them from his palms, and when they hit something, it turns into blue ice. He can also freeze things faster than Big Chill. By inhaling deeply, he can lower the temperature of the air he breathes in, freezing anything that happens to be in it's path. His transparent invisible/intangible form is now red instead of blue. He is also much faster while flying and phasing through objects. Like Big Chill, he can survive in a variety of environments, including extreme heat, intense cold, deep underwater, and the vacuum of space/
He is the third used freezing alien because Articguna in the episode Ben 10,000 was the first freezing alien used. Since it is not fast it does not take much accuracy to hit him although he may become invisible, he does not use it often making it rarely used. It is different from Big Chill because his attacking power is better because area is increased.
Like Big Chill, Ultimate Big Chill is an ethereal ghostly Mothman creature who can pass through matter. Unlike Big Chill, he is colored red. Ultimate Big Chill resembles more of an fire-type alien while Big Chill looks more a ice-type alien though both are able to go intangible, invisible, manipulate ice and fly.
In Ben 10: Protector of the Omniverse, he has his Ultimate Alien appearance but he has a green belt. The red chest plate on his torso his green.
In Ben 10: Heroics Unleashed, he looks like his Ultimate Alien appearance, but the colors on his wings are reversed.
In Ben 10: Omnitrix Unlimited, he is modeled to look like Omniverse Big Chill, but he retains his Ultimate Alien colors.
In Ben 10: Ultimate Omniverse, he has his Ultimate Alien appearance, but with Big Chill's Omniverse head and facial features. However , the blue parts are red.
In Ben 10: The Omniwars, his negative form has Omniverse Big Chill's appearance, but with his Ultimate Alien wings and antennae. He has a red belt with white stripes.
Ben 10: Omnitrix Unlimited
He appears in You Are Begging For Trouble where he defeats Heatbat. In Highbreed Invaded: Part 2, he defeats Hypnotick and fights Ultimate Hypnotick. He is used by BTUO Ben in Ben Quest to save BTSO Ben. In Ben 10: Across the 23rd Dimension, he fights MAL.W.A.R.E.
Ben 10: Super Omniverse
His wings are rather larger than before. He reappears in One Shall Fall: Part 2 to fight Vilgax.
Ben 10: Alien Alliance
Ultimate Big Chill is first used to fight Rob Lucci.
- Ultimate Evolution (first appearance)
- Eye of the Beholder (John Smith 10)
- Knight's Temple (used by Kevin)
- The Ultimate Enemy Part 3 (John Smith 10) (used by Ultimate John)
- On Ice (first re-appearance) (used by Ultimate John)
- The Ultimate Battle Part 1 (used by Ultimate John)
- Incarcecon Breakout, Part 1 (first re-appearance) (used by Ultimate John)
- War Game
- Round Four Part 2
- Reasoning (John Smith 10) (first re-appearance)
Ben 10: Protector of the Omniverse
- Hero's Challenge (first reappearance)
Ben 10: Heroics Unleashed
- Smarts (first reappearance, by Ben)
Ben 10: Ultimate Omniverse