This "ultimate attack" starts with Android 17 and Android 18 relentlessly beating their opponent together, and then knocking them into the ground. There are two versions of this attack, one of each used by 17 and 18. If 17 performs the attack and does it correctly, then he says "This is easier than I thought", then he and 18 rise up into the air and 17 fires his Dead End Bullet alongside 18 as she fires her Dead End Rain blasts down onto their opponent, inflicting a great amount of damage. If 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, inflicting a great amount of damage. Her kick is similar to when she broke Super Saiyan Vegeta's arm during their battle.
Appearances in games
"Accel Dance" was named in the Budokai series. The technique can also be used in the arcade game Dragon Ball Z: W Bakuretsu Impact. It is also Android 17's Ultimate Blast in Dragon Ball Z: Budokai Tenkaichi 3 as well as Android 18's team attack in Dragon Ball: Raging Blast 2 and her ultimate attack in Dragon Ball Z: Ultimate Tenkaichi; in all these appearances, it is called the Sadistic Dance (サディスティックダンス, Sadisutikku Dansu (not to be confused with Sadistic 18). Both Android 17 and Android 18 use Sadistic Dance as one of their Super Attacks in Dragon Ball Z: Dokkan Battle. Depending on who uses the attack, the opposite character is summoned to assist. However, rather than using their Power Falling Star attack, they instead finish the combination with their Non-stop Violence technique.
In Dragon Ball Xenoverse 2, the Energy Barrage portion of this technique is separated into two Ultimate Skills named Dead End Bullet (Future Android 17's part of the technique) and Dead End Rain (Future Android 18's part of the technique). Both Skills can be obtained by the Future Warrior (Xenoverse 2). Dead End Bullet can be obtained as a reward in Expert Mission 08: "Ominous Androids", while Dead End Rain can be obtained as a reward in Expert Mission 13: "A History of Mixed Battles!".