The Super Spirit Bomb (Chou Genki Dama) is an immensely powerful Spirit Bomb that was powered by the energy of every person on the newly revived planet Earth. It was used by Goku as a final attack to defeat Kid Buu. However, when he launches the powerful attack, Kid Buu was strong enough to stop it and push it back at Goku, who is too exhausted to stop it. Dende then uses the last wish of the Namekian Dragon Balls to restore Goku's strength back to normal. With his strength back, Goku transforms into his Super Saiyan form and pushes the Super Spirit Bomb back at Kid Buu. After several moments reflecting over the events that led to this moment and wishing he would come back as a better person so they can fight again, Goku destroys Kid Buu once and for all.
Video game appearances
In the video games, when Goku uses this attack and it successfully hits the foe, he transforms into a Super Saiyan, and blows up the Super Spirit Bomb (in the anime when the Spirit Bomb was being pushed his way before recovering his power and turning Super Saiyan, he had to push it back).In Dragon Ball Z: Super Sonic Warriors 2, it appears as a Team Super Attack, inflicting great damage, depending on the Dragon Power of the foe the player is facing. (If the damage is set to Extra-Heavy in the options menu, the attack can result in a one-hit knockout.)