Board Thread:Questions and Answers/@comment-11276487-20130720025915/@comment-11276487-20130720042414

Well super saiyan 3 is kind of like steriods it builds you up powerfully but at a cost.

However Super Saiyan God has its limits too and what some Dragon Ball fans dont know for sure is that Super Saiyan 4 is limited by the anger.

Im sure how exactly Vegeta,But the reason how Goku controled it is because of his peaceful clear mind if he lets go of that for atleast 2 seconds he could lose control.