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DBZ Episode: Goku VS Saiya

This battle begins after Goku has grown up and lived with Gi-Gi, a daughter of cow devil who is one of the Kami 's students. They have 1 son named Son Gohan. When Goku takes Gohan to Kami's house, Raditz who is a warrior of Saiya Planet comes and reveals that he is an elder brother of Goku. He tells Goku that Goku is Saiya people and has a name "Kakalot". Goku doesn't believe it, so Raditz kidnaps Gohan and threatens Goku that if he wants the world to be peaceful, Goku must be at the same side. Goku has Mar Piccolo to help him fight with Raditz. This battle ends with the death of Raditz. Goku also dies because of saving the world by using "Special Beam Cannon" of Piccolo.

Before Raditz has died, he tells them that there'll be two Saiya warriors coming to the world. They are Vegeta (Prince of Vegeta's Planet) and Nappa. All warriors in the world including Kurilin, Yamusa, Tien, Chaozu, Piccolo and Gohan that is well trained by Piccalo help each others to fight against Vegeta and Nappa.Unfortunately, the two Saiya warriors have high power,so lots of the world's warriors die including Yamusa, Chaozu, Tenshinhan, and Piccolo who dies because of helping Gohan.When Goku alives again, he goes to help Kurilin and Gohan in time. Goku uses skill of kaioken that he has practised with Dio in heaven to attack Nappa. Nappa lose Goku and is killed by Begita. AsVegetasees Goku's strength, he dare Goku to fight him.Goku can't do anything to hurtVegetabecause of the side effect of Kaioken.So, Goku must use Genki Ball to increase his power.Vegeta uses Power Ball to make a fake moon and transform himself to be a giant monkey. Goku then realize that what Raditz has told him is true.

The giant monkey attack Goku til all of his bones are destroyed. That's why he can't shoot power ball. Fortunately, Gohan, Kurilin and Yajirobe come to help him by cutting the monkey's tail. Doing so can make Begita re-transform to be himself again. Later it's Gohan's turn to be a giant monkey because of power ball. Now,Vegeta is attacked and injured. He cuts Gohan's tail and get away from earth.