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 ...

Interestingly, the Broly card here, which features Broly shifting into his Super Saiyan form while dormant, looks like a continuation of the "Dormant Legend" Broly card seen sleeping in his base form ...