From Tekkenpedia

Lightning Screw Uppercut
Command	B+1+4
Stance
Damage	80
Hit Range	!
Properties	KND
Move Frames		Hit Advantage
63		KD
Block Advantage		CH Advantage
KD		KD

Lightning Screw Uppercut, also called Lightning Screw Godfist, is an unblockable move introduced in Tekken 2, that can be performed by Kazuya Mishima, Devil Jin and Jin Kazama (T3 and TTT only). During the animation of this move, electricity surrounds the character and the character does two clockwise spirals and uses the momentum to perform a leaping left-handed punch. The Lightning Screw Uppercut also has a weaker, yet quicker version known simply as the Lightning Uppercut.