7x36 - Dragon Ball Z: Dragon Box

At last, the Genki Dama, made of the energy collected from everyone on Earth, is completed! However, having used up all of his strength fighting Boo, Vegeta is unable to get away. Vegeta tells Goku not to worry about him, and to launch the Genki Dama, but Goku is reluctant to put Vegeta in the way of the blast. However, with some quick timing, (good) Boo and Mister Satan are able to rescue Vegeta! Finally, the Super Genki Dama is released toward Boo!