Ultimate Big Chill is a playable Exosuit of the Banzai Squadron onProject Exonaut. His Weapon Mod enhances the Tridex's firing rate and accuracy. Ultimate Big Chill is available for purchase at level 10 for 750 coins.
Benjamin Tennyson ("Ben Ten") is the former wearer of the Omnitirx, a watch that can change him into various aliens, usually in sets of ten, although he gradually gains more throughout the season. However, his Omnitrix was destroyed, in an atempt to kill of Vilgax, his arch nemisis, and gained a new watch called the Ultimatrix, which can change him further into the "Ultimate Form", where evolution would take the alien under extream conditions of war, natural danger, ect. One Ultimate is Ultimate Big Chill, which turns a frost alien into and alien that uses, in Ben's words, a freeze so cold it burns