From Dragon Ball Wiki, the ''Dragon Ball'' encyclopedia
The Stardust Breaker (スターダスト ブレイカー, Sutādasuto Bureikā) is a rush attack used by Gogeta. Gogeta attacks the opponent with a powerful and quick barrage of punches in their stomach. Then, he flies past the stunned opponent and turns around to knee them twice in the back of their head before backflip kicking them away. Next, he lands on the ground and raises his hand to charges a rainbow energy sphere. Finally, Gogeta turns around and throws the energy sphere, which has a delayed effect, but finally disintegrates the opponent from the inside, inflicting a huge amount of damage.
Gogeta used this attack to defeat Janemba in Dragon Ball Z: Fusion Reborn. While Pikkon was fighting Janemba, only to be defeated by the monster, Son Goku and Vegeta successfully used the Fusion Dance to merge into Gogeta. As Janemba powered up and prepared to fight, Gogeta attacked and destroyed Janemba with the Stardust Breaker rush, removing all of Janemba's evil energy and restoring the young ogre Saike back to his former self.
The Stardust Breaker was named in the Budokai Tenkaichi video game series and is Super Gogeta's Ultimate Blast. Originally, only the energy sphere at the end of the rush was featured in Dragon Ball Z: Budokai Tenkaichi and Dragon Ball Z: Budokai Tenkaichi 2. This was later fixed in Dragon Ball Z: Budokai Tenkaichi 3. It also appeared in Dragon Ball Z: Budokai 3 and Dragon Ball Z: Infinite World where it is named Soul Punisher (ソウル パニッシャー, Sōru Panisshā).