King Kai (界王, Kaiô; literally "King of the Worlds") or North Kai (北の界王, Kita no Kaiô; literally "King of the Worlds of the North") is a deity, the ruler of the North Quadrant, and Goku's final martial arts teacher, and later mentor. He also taught Yamcha, Tien Shinhan, Piccolo and Chiaotzu. His planet is at the end of a long winding road known as Snake Way, where he teaches powerful, new techniques such as the Spirit Bomb and Kaio-Ken. Despite the fact that his planet is around 100 feet in diameter, its gravity is ten times greater than Earth's. He has a monkey named Bubbles and a motor-mouth grasshopper named Gregory. He wears Teashade sunglasses, and owns a Red 1955 Chevrolet Bel Air Hardtop. He has a "strong sense of humor" and tells very bad jokes, and puns, although he possesses great wisdom and knowledge about the universe. He specializes in universal telepathic links. During the Other World Tournament, his best fighter, aside from Goku, is Olibu and Piccolo (though the Namek never fought in the Other World Tournament his strength is about equal to Olibu).
Power Level[]
King Kai was given a power level of exacley 3500 in V Jump under the Saiyans yet stronger then King Yemma who easyly defeated Raditz however it seems as if King Kai trained with the Humans and Piccolo and Goku and his power level incresed tons as he called the ginyu force weaklings and was not impressed at all with there power.
King Kai washing his car.