Hell's Flash

Hell's Flash (ヘルズフラッシュ) is a powerful energy wavetechnique that is one of Android 16's most powerful attacks.

History
Android 16 lifts his opponent and tosses them to the ground, then he removes half of each forearms, tucking them beneath his armpits and revealing cannons within the remaining portions of his arms. These cannons take a brief moment to charge, before Android 16 shouts "Hell Flash!!" while igniting a giant explosion from which hundreds of small beams are shown sprouting from the crater.

Android 16 uses this attack during his fight against Cell in his Imperfect form. After punching Cell with his Rocket Punch, Android 16 proceeds to punch Cell to the ground, following by throwing him deeper into the ground. Then, Android 16 fires his Hell's Flash attack, creating a huge shockwave around the entire island they fought on. Cell is severely injured by the attack, but he moves underground to where Android 17 is watching in shock, and absorbs him, much to Android 16's and Android 18's surprise.