Revenge Cannon
From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Directory: Techniques → Offensive techniques → Ki → Energy waves
The Revenge Cannon (リベンジ キャノン, Ribenji Kyanon) is an energy wave attack used by Gotenks in his Super Saiyan 3 form. Gotenks opens his mouth and charges a yellow energy sphere. He then fires the energy sphere in the form of a jagged energy wave at his opponent, inflicting a high amount of damage.
[edit] History
Gotenks used this attack in his battle against Super Boo. After getting knocked into a building by Super Boo, Gotenks attempted to attack Super Boo with a kick. Super Boo countered with the a mouth blast, however, injuring Gotenks and destroying the city they were fighting in. Humiliated, Gotenks retaliated by blasting Super Boo with the Revenge Cannon, injuring the Majin as he fell down to the ground.
[edit] Video games
Revenge Cannon is named in the Raging Blast video game series and is one of Gotenks' Super Attacks in his Super Saiyan 3 form. It is named Dimensional Portal Cannon in Dragon Ball Z: Supersonic Warriors and Victory Cannon in the Budokai video game series and Dragon Ball Heroes.