he became a super saiyan by getting enough rage i nthe freiza saga when freiza exploding krillen into chunky bits of flesh all of the anger unlocked his legendary warrior spirit.
To be more specific, his body as simply put was ready for the transformation. At that point Goku was far and beyond the full limits of a pure blooded saiyan, and Goku himself thought that he had also trained to his bodies limits and has gotten as strong as any man or saiyan could, he technically was right he'd reached his limit. As we all know saiyans were subject to large bursts of power when angered, once frieza killed krillin goku's anger burst open and past the limits of his body. Basically the transformation pushed his limit to a whole new level past his original.
Angered by Krillin's death, Goku goes super saiyan in his fight against Frieza.
He gets really mad.
when he battles freiza
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Obi WIN
You have to unlock the gt saga then do the missions until you get it
Goku.
He became a super sayan during his battle with Freeza, after Gohan was born and was like 8, so I'd say about mid to late twenties.
yes super sayan 10 can beat the hulk because super sayan 10 is faster,stronger,have more skills hulk can only smash things super sayan 10 can also breath out in space hulk cant super sayin 10 can destroy a whole galaxy with one burst hulk cant if you dont belive me watch broly the legendary super sayan
At the moment there are 4 Super Sayan levels. Super Sayen Super Sayen Ascended (Has lightning running around their body) Super Sayan 3 (Has long gold hair) Super Sayan 4 (Fund in DragonBall GT)
If he can go super sayan 1, 2, and 3 of course he can do it! Besides vegeta did it, so if vegeta can do it, so can goku cause he is stronger!
There is no super saiyan 4, its only until super saiyan 3 (Broly,Vegeta,Goku and Gotenks). There are only characters of Dragon Ball Z Kai, not Dragon Ball GT.
Gogeta, the fusion of super saiyan 4 Goku and Vegeta.
Goku.
No. Goku only ever reached Super Saiyan 4.