|"Remember that the Spirit Bomb is a martial arts discipline that allows you to borrow energy from grass and trees, from people and animals, from inanimate objects and the atmosphere... And then to concentrate them and release them. If you can draw so much destructive power from a ball made on this small planet... ...Imagine what you can do with a Spirit Bomb formed on Earth! If you can also learn to tap into the astounding powers of the Sun... Well. Just be careful. Or you may destroy the very planet you're trying to protect!"
— King Kai, in "Closer... Closer..."
Spirit Bomb (元気玉, Genki Dama; lit. "Energy Sphere") is a powerful attack in Dragon Ball, widely considered to be the strongest attack in the series, but depends on the number of organisms supporting its use. In the manga, it is used only a total of four times.