Fierce Combination (爆裂乱舞, Gekiretsu Ranbu) is a rush attack used by Future Gohan and Future Adam in there Super Saiyan forms. First, they strike a fighting pose as they charge at the opponent and kicks them up into the air. Then, they flies up past the opponent and flies back to roundhouse and punch them away. Next, they grabs the opponent by their ankle and shout, "Die!" as they flie down to smash them onto the ground. Finally, Future Gohan or Future Adam backflip away and shout, "Watch it!" as they fire a powerful one-handed Super Kamehameha at the opponent, inflicting a high amount of damage.
Future Gohan used part of this attack during his battles against Future Android 17 and 18 in the movie, Dragon Ball Z: The History of Trunks. When exchanging blows with Future Android 17 in their first battle, Future Gohan gained the upper hand and attacked with the Gekiretsu Ranbu rush's kick, kicking the Android onto a railing. In his second and final battle, Future Gohan overpowered Future Android 17 and 18 in an energy wave struggle with the Gekiretsu Ranbu rush's one-handed Kamehameha, blasting them across the ground. Future Gohan later attacked Future Android 18 with the Gekiretsu Ranbu rush's leg throw, smashing the Android down into a damaged building. Future Adam used this attack during his battle against Hellfire and Killzone killing Hellfire and defeating Killzone before being defeated by Lilith. Later he uses parts of this attack during his final battle against Lilith and Devlin, coming back to face them after recovering from his last battle against Lilith in his Super Saiyan 2 form. He used the move`s kick after gaining the upperhand while exchanging blows with Devlin sending him through several biuldings and using the rush`s leg grab after fighting against Lilth to throw her into a skyscraper! And last but not lease he unleashed the rush`s one handed Super Kamehameha to counter both Devlin and Lilith`s nonstop violence blast pushing them back into a riuned building.
Fierce Combination was named in Dragon Ball: Raging Blast 2 where it is Future Gohan's Ultimate in his Super Saiyan form. This technique was known by its Japanese name Gekiretsu Ranbu in Dragon Ball Z: Budokai Tenkaichi 3.