Screw Attack (move)
The Screw Attack (スクリューアタック, Sukuryu Atakku) is a moved used by Samus Aran by pressing Up-B. The move shoots Samus into the air and spins her around and around, inflicting damage on any opponents that touch her. Just as in the first Super Smash Bros., the Screw Attack does cumulative damage and sucks opponents into the center. It's also often used to survive from a fall off the stage. This move can also be used as a Rocket K.O when used from the ground on near-by enemies.
The Screw Attack is one of the last special abilities Samus can learn, causing her to spin with electrical energy whenever she jumps, instantly destroying most enemies. Combined with the Space Jump, Samus can continually jump and destroy everything in her way.
In Super Smash Bros., the Screw Attack has invincibility frame(s) in the first few frames of initiating the move.
Unfortunately, in Super Smash Bros. Melee, any charging of your Charge Shot will be cancelled if you are hit during this attack in the PAL version of the game.