Cooler made his presence known in the Dragon Ball Z franchise in two feature length films, the fifth and sixth movies respectively, with Cooler’s Revenge and The Return of Cooler. The first film ...
Dragon Ball's movie-only transformations often defy all power scaling logic, and are much stronger than they have any right being.
Previously revealing that he reached a Golden transformation like his brother Freeza, Episode 12 of Super Dragon Ball Heroes debuted a surprising update to his Metal form too: Golden Metal Cooler.