Screw Attack (item)
The Screw Attack made its first appearance in Metroid. In Metroid, the Screw Attack is a Chozo artifact that allows Samus to attack while somersaulting, which would become the basis of Samus's up special in Smash. The Screw Attack upgrade has since appeared in every 2D Metroid game with the same functionality, although it is obtained from a Core-X Parasite instead of an item in Metroid Fusion. The upgrade also appears with a new design in Metroid Prime 2: Echoes and Metroid Prime 3: Corruption, where it allows Samus to perform continuous mid-air jumps.
The item in Smash is derived from the Screw Attack's design in the 2D Metroid games. In Melee, the Screw Attack specifically resembles the item as seen in-game in Super Metroid; later Smash games have updated its appearance to match the item's brighter color palette seen in Metroid: Zero Mission.
The Screw Attack's iconic design, resembling a stylized letter "S", also serves as the symbol for the Metroid series.
In Melee, it can be thrown at an enemy, which forces them to perform the attack. Unlike when using it normally, however, this leaves the victim helpless in the process. When thrown, Screw Attacks can steal KOs, since the distance the character rises after getting hit by it depends on how fast the character is getting launched. If characters are launched from a high percentage and get hit by a Screw Attack, they fly up very quickly while performing the Screw Attack and often cross the blast line for a Star KO.
In Super Smash Bros. Brawl onwards, the Screw Attack is instead a badge item, similar to the Franklin Badge. As a result, it cannot be thrown as in Melee, but allows the user to attack as normal while it is being held; it will eventually fall off, however. A very large portion of the attack from Brawl onwards is interruptible, allowing it to be cancelled into any of the character's attacks. In Smash 4, the Screw Attack has a quirk of removing the character's ability to short hop while it is equipped. It also slightly boosts jump height.
One of Samus Aran's power-ups from the original Metroid, the Screw Attack turns a jump into a rotating attack move. When carrying this item, any character's ordinary jump move will turn into a Screw Attack. By the same token, if you throw this item at an enemy, your foe will spontaneously do a Screw Attack.
A badge you can wear to turn your jumps into Samus's signature Screw Attacks. In Super Smash Bros. Melee, it was an item you carried, but this time around it's a badge you wear--which means you can use it and another item at the same time. There's a good chance you'll be able to string together Screw Attacks and midair strikes for powerful combos.
This handy item grants you the same power as Samus's Screw Attack when you pick it up. With the right timing, you can execute a devastating combo of midair attacks. Be careful, though—some fighters sacrifice the height of their jumps when they're wearing this.
A badge-type item that lets you use Samus's powerful Screw Attack technique when you jump. If you use it at the right moment, you might even be able to pull off deadly combos with other mid-air strikes. But watch out - some characters' jumps might not be as high while using this.
Equipping the Sandshrew, Top Man, Bubbles, or Helirin support spirits will give the player a Screw Attack at a start of a match.
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