In the battle with Gas, the villain provokes Goku, asking if he will take the form of silver hair (the Ultra Instinct), but Goku says he won’t, because to reach the fullness of the Ultra Instinct, it is necessary to have a calm and empty mind. , something he cannot do and says he will seek his own way:
Goku then appears in a new form, which changes the color of his eyes but keeps his hair black. The most impressive thing is that his power surpasses the limits he achieved with Ultra Instinct. We don’t know the name of this new form yet, but it’s being called by fans ‘Saiyajin Instinct’, as we have a whole arc talking about Saiyan pride and the heritage of Bardock, father of Goku.
The fight with Gas isn’t over yet, but it’s worth noting that, in this new form, Goku used his mouth to unleash an energy attack (see the image above), which Nappa had already done in the manga.
Throughout the current story arc, Goku and Vegeta are facing Gas, who has become the most powerful warrior in the universe. However, the Prince of Saiyans has been strengthened and makes this change in attitude and power clear.
At the end of Chapter 84, Vegeta declares: “Damage is nothing more than fuel to me. Do you understand what that means? I’m just getting stronger.”