Dragon Ball Episode 145
Junior No More
Piccolo reveals to everyone that he is, in fact, the reincarnation of King Piccolo. Upon hearing this, all of the spectators rush from the arena leaving only Goku and his friends, though this works to Goku’s advantage, as he no longer has to worry about innocent bystanders getting hurt. Piccolo then concentrates his energy to turn into a giant form of himself. Even though he is considerably larger, Goku still has no problem battling him. However, he says that if Piccolo were to be any bigger he would be in trouble. Of course, Piccolo does just that, becoming gargantuan.