The newest, most powerful transformation that Goku reached in Dragon Ball Super finally got an official name. Since its debut, Goku's Ultra Instinct went through several stages, all with different names, but fans were still wondering what to call the transformation that the Saiyan warrior obtained during his fight against Gas. The official Dragon Ball website answered that question.
Ultra Instinct was originally taught to Goku by Whis, an Angel in the service of the Lord of Destruction Beerus. Whis explained that, by erasing one's consciousness, this technique allows the body to move and fight independently of thoughts and emotions. Angels are constantly in this state, which is recognized as a properly divine technique, one that could make the user unbeatable even by gods. Goku achieved this transformation in the fight against Jiren due to being backed against a wall but has since been unable to control it, having a hard time fully repressing his emotions. During the training and battles that followed, Goku reached several levels of this transformation: Ultra Instinct Sign, Autonomous Ultra Instinct, and finally the Perfected Ultra Instinct. However, there was one more, hidden step of the technique.
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During the fight against Gas, both Ultra Instinct and Vegeta's Ultra Ego were useless against the villain's overwhelming power, obtained through a wish to the Dragon Balls, forcing the two Saiyans to push past their limits once again. After learning of his father Bardock's past battle against Gas, and realizing that casting his emotions away does not suit his personality at all, Goku develops his own version of Ultra Instinct in chapter #85 of
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