Red Ribbon Saga:
During this series, Son Goku goes under training with Muten-Roshi (kamesennin), later Krillin joins Son Goku in training. Muten-Roshi teaches Son Goku and Krillin the dreaded Kamehameha. Later Son Goku gets trained again by Karin in his high tower, but this time his training was used to defeat Dr. Gero and to defeat Tao Pai Pai, a professional murderer that has killed one of Goku's new friends. After all this training Goku, Krillin, and Bulma, get together to get the Dragon Balls and Goku finally destroys the whole Red Ribbon head-quarters on his own.

Piccolo Saga:
The series starts of as Son Goku enters the Tenkaichi-budokai. During this tournament Son Goku meets Tien and Choazu. The final match is between Son Goku and Tien, Son Goku loses in this battle. (Due to an unfair but cool ending! Goku and Tien are falling in the air and the first one to fall is the loser! So they are too tired to do anything about falling. So Goku hits a truck, and falls quicker than Tien.) After the battle Krillin is murdered, Son Goku starts looking for the killer. Meantime Piccolo-Diamoho is causing terror around the world. In a battle with Piccolo-Diamoho, Tien is about to die, when suddenly Son Goku arrives and defeats Piccolo-Diamoho. Before Piccolo-Daimoho dies he gives birth. Knowing that Piccolo-Damioho gave birth Kamesama trains Goku. At the next tournament Son Goku battles Piccolo-Damioho and defeats him, sparing his life at the end. At the end of the series Son Goku marries Chi-Chi. (Before they got married, the castle of Chi-Chi's father, was surrounded with flames, due to this, they had to go under, and fix the pot, because there was a crack in it.)