Super Saiyan 4 and the Kaio-Ken aren't the only tricks Goku has to transform himself into a red-coded character. In Dragon Ball Z: Battle of Gods , Goku unlocked his Super Saiyan God transformation.

While 4 might not be able to defeat Goku if he employs the use of Kaioken while in this form, it’s still clear that Goku in this powered up form from Dragon Ball GT could maintain the form ...

On top of this, Goku and Vegeta becoming Super Saiyan 4s in Dragon Ball GT saw them both still sporting their black hair but in Daima, Goku looks far closer to a mix between 4 and Super Saiyan God.

One of Goku's long-forgotten techniques makes a comeback in 'Dragon Ball Super.' Ever since Goku went Super Saiyan back during the Frieza saga, he hasn't had much use for his old Kaio-ken technique.

Before Goku achieved the iconic Super Saiyan state in his battle with Frieza, the closest thing that Goku got to a transformation is the Kaio-ken technique. Invented by King Kai and taught to Goku ...

While fighting Hit, Goku decided to use Super Saiyan Blue with the Kaioken on top of that, mostly called Blue Kaioken, thus giving him a massive upgrade in speed and strength. This was also used ...

Just like in the anime, Goku will unlock his first form, Kaioken, after defeating the invading Saiyan, Vegeta. His iconic Super Saiyan 1 form can be unlocked after defeating Frieza on Namek.