King Kai's Planet is the home of King Kai. It is very small, only having enough space for a small house, car, and some trees. It has very high gravity, ten times that of Earth, so it is a popular spot for fighters who want to train. It
is where Goku learned the Kaio-Ken and Spirit Bomb techniques, and where Yamcha, Tien Shinhan, Piccolo, and Chiaotzu trained during the Namek Saga. King Kai is accomponied by Bubbles the monkey, Gregory the cricket, and (in TeamFourStar) Bojack the pirate.