7x34 - Dragon Ball Z: Dragon Box

As Vegeta had planned, Goku begins to gather the genki energy of the people of earth, in an attempt to create the biggest Genki Dama in history! Using the Kaio's power, Vegeta sends a message to the people of the earth. The Z Warriors and company immediately offer their cooperation, but the other earthlings, not knowing the situation at hand, refuse to cooperate. The way things are going, Goku cannot make a Genki Dama strong enough to eliminate Boo.