Jet Hammer

Jet Hammer is King Dedede's down special move in all of his playable Super Smash Bros. series appearances, starting with Super Smash Bros. Brawl. When used, by holding down the special attack button, King Dedede charges up a jet-powered hammer swing; the attack gets stronger while the player charges, and the player is able to hold the charge indefinitely and move while charging, though a fully-charged Jet Hammer also damages Dedede for every second he holds it, though it stops damaging him at 150% in Super Smash Bros. Brawl and 100% in Super Smash Bros. for Nintendo 3DS / Wii U.

In both Super Smash Bros. for Nintendo 3DS and Super Smash Bros. for Wii U, the first custom variant for this move is the Armored Jet Hammer (spelled Armoured Jet Hammer in the British English version), which grants Dedede super armor while charging, though it causes Dedede to take more damage than normal when it is fully charged. It also deals less damage and knockback, making it less effective at making KOs. Additionally, Dedede suffers from a longer start-up and ending period upon releasing the attack. The second variant, the Dash Jet Hammer, enables Dedede to travel forward when he releases the move, but he does move backward a little while charging. The move deals less damage and knockback overall, but its knockback is better than that of the Armored Jet Hammer.