Piccolo Daimaou Saga
After Gokou finds Krillin dead he goes to find Tambourine, the monster that killed him. Gokou eventually finds him and his master, Piccolo Daimaou. Pilaf is there too because he is the one who freed Piccolo from the Rice Cooked that he was trapped in. A long battle ensues and Gokou is at the front of it. Many more of his friends end up dieing. Piccolo manages to collect all of the Dragonballs and wishes for his youth back. With this he becomes much stronger. Gokou retreats to train for a while, but comes back in full force. After this training Gokou nearly kills Piccolo, but before he dies Piccolo spits out an egg that is his reincarnation.