Accel Dance
From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Directory: Techniques → Offensive techniques → Ki → Energy beams
The Accel Dance (アクセル ダンス, Akuseru Dansu) is an energy beam attack used by Future Artificial Human No. 17 and Future Artificial Human No. 18. Future No. 17 and Future No. 18 beat up their opponent together and knock them to the ground.
There are two versions of this attack, one used by Future No. 17 and one used by Future No. 18. If Future No. 17 performs the attack and does it correctly, he and Future No. 18 rise up into the air and fire the Ki Blast multiple times down at their opponent, inflicting a great amount of damage. If Future No. 18 performs the attack and does it correctly, she teleports down to her opponent and kicks them in the arm before they hit the ground. Her kick is similar to the one that she used to break Super Saiyan Vegeta's arm in their battle. Alternatively, if Future No. 18 performs the attack correctly, it will sometimes feature Future Kuririn performing the attack with her instead of Future No. 17.
Films
Accel Dance appeared in Dragon Ball Z: The History of Trunks. The Accel Dance was used by the Artificial Human twins to kill Future Son Gohan in Future Trunks Brief's alternate timeline.
Video games
Accel Dance is Future No. 17's Ultimate Attack in Dragon Ball Z: Budokai Tenkaichi 3 and Future No. 18's Team Attack in Dragon Ball: Raging Blast 2, but called Sadistic Dance (サディスティック ダンス, Sadisutikku Dansu). (This is not to be confused with the Sadistic 18.)