However, Merus and Whis later reveal to Goku that he was only able to achieve Ultra Instinct sign, an incomplete version of the technique, which is why Goku was only able to hold it so briefly. The technique separates the user’s consciousness from their body, allowing them to fight without being impeded by thoughts or emotions, which greatly enhances their power and speed.
Through training with Merus, Goku learns more about Ultra Instinct and is even able to temporarily achieve it during his fight with Moro.
The losers’ universes are destroyed, so the stakes have never been higher for Goku, who is selected as one of the champions of his universe. Ultra Instinct, also know as the "state of the gods," was first used by Goku in Dragon Ball Super during the Tournament of Power, a contest where champions from several universes are forced to fight one another. Related: Dragon Ball: What's The Deal With Goku's 'Power Pole'? This form is said to be the most powerful iteration of the Super Saiyan, but it still pales in comparison to the technique known as Ultra Instinct. In the years since, Goku and others have achieved higher levels of Super Saiyan, going all the way up to perfected Super Saiyan Blue, which was achieved by Vegeta in the manga Dragon Ball Super. Goku becomes enraged after Frieza kills his friend Krillin, leading to the transformation. For example, Goku first goes Super Saiyan in chapter 317 of the Dragon Ball manga during his fight with Frieza. The form is typically brought about by intense rage. Super Saiyan is a transformation that certain Saiyans (like Vegeta and Goku) and half-Saiyans (like Gohan and Trunks) can undergo to increase their power. For a long time, the Super Saiyan technique has been Goku’s bread and butter, but believe it or not, he actually has another, even more powerful form. Goku, the hero of the Dragon Ball series is notorious for constantly one-upping himself just when you think he’s reached his peak, he gets even stronger.