Cooler

Cooler is Frieza's older brother and the eldest son of King Cold. Unlike his younger brother, Cooler is more composed, calculating, and possesses a fifth transformation beyond what Frieza initially achieved. In his final form, Cooler becomes significantly larger with a bio-armor covering his head and body, increasing his power dramatically. He harbors a rivalry with Frieza and looks down on his younger brother's carelessness. Cooler confronts Goku on Earth seeking revenge for Frieza's defeat, proving to be an even more refined fighter than his brother despite ultimately falling to Goku's Super Saiyan power.