Bubbles is the monkey companion of King Kai, and is used heavily in his training of his students. Bubbles is first used when Goku is assigned to catch him, which proves difficult due to the planets higher gravity.However Goku eventually manages to capture the monkey after forty days, before moving on to his next test. He is later caught by Tien,Yamcha,Chiaoztu and Piccolo when they begin their training. Bubbles is later killed when Goku uses his instant transmission to teleport Cell to King Kai's planet as the villain explodes.