The Ultra Instinct (Transformation)

The Ultra Instinct (UI) transformation has two levels :
- Ultra Instinct - Signs.
- Ultra Instinct - Full (Mastered).
In Dragon Ball Super, Goku is the only character who isn't an Angel nor a God of Destruction who is able to be able to reach the mastered version of Ultra Instinct.

His father Bardock, when he was alive, is another character from Dragon Ball who was able to reach a state similar to the Ultra Instinct but by staying in his base form. Later, in the Dragon Ball Super manga, Goku tries to do just like him.

The Ultra Instinct is the prefered technic of the Angels and Goku has obtained it after training constantly with Whis the Angel of Universe 7.
This is a state which is complicated to reach, even for the Gods of Destruction.
It consists to act instinctively without thinking.
The uncomplete Ultra Instinct (Signs) allows its user to react instinctively when it comes to defensive moves and with the full Ultra Instinct, the user can also attack instinctively too.
Goku managed to use the full ultra instinct at the very end of the series Dragon Ball Super.

Goku using the Ultra Instinct mode

Ultra Instinct (Sign)	Ultra Instinct (Mastered)