How do you do ultra combo in killer instinct gold?

In Killer Instinct Gold, to perform an Ultra Combo, you first need to have your opponent's health bar completely depleted. Once you’ve achieved this, quickly input the Ultra Combo command by pressing the appropriate button combination for your character. Typically, this involves a series of specific attack buttons, and the timing is crucial. If executed correctly, your character will unleash a powerful finishing move that showcases a series of devastating attacks.