Super Dedede Jump
King Dedede jumps extremely high, then crashes down, dealing damage during the descent and when landing on the ground. The jump can be angled by pressing left or right while Dedede is turning to face the screen before he actually jumps, but once in the air, pressing left or right only changes the direction Dedede faces when he lands. When King Dedede lands, there is a strong landing hitbox that can launch opponents up. There are also star projectiles that can stun opponents momentarily.
Super Dedede Jump, while limited in movement, is very well-protected. During the first half of this attack (when he jumps into the air), King Dedede has super armor from frames 26-45, causing long attacks such as Smart Bomb to freeze King Dedede if he is hit during his armored frames. However, the jump at this stage deals no damage. In Smash 4, the ascent's armor was nerfed (26-32 with additional body intangibility on frames 22-25), but more was added to the descent (73-80). The feet also become intangible from frame 73 until landing. In Ultimate, further protection was added, with the ascent having invincibility from frames 18-24 with armor active 22-34, then the descent gets armor from 69-76 with foot intangibility from frame 69 onwards.
If Dedede hits an opponent as he is falling, it becomes a powerful meteor smash. If this move meteors an opponent onto the ground, and then Dedede lands on top of them, it has vertical knockback instead of the normal 45-degree angle. Stars are produced around King Dedede when he lands, in reference to the Kirby games, although these deal damage. In Super Smash Bros. 4, Super Dedede Jump gained the ability to bury grounded opponents when landing on top of them, which can be used as a niche method to set up KOs. A common method of doing this is by burying an opponent near the ledge, and then cancelling the jump to grab the ledge, giving just about enough time for a move such as a down smash due to the strength of the bury. However, it still takes an enormous amount of time.
Unlike most other up special recoveries in Brawl, this move does not auto-sweetspot the edge, though it does in Super Smash Bros. 4 and Ultimate during the upward swing of the jump. However, if the move is canceled close enough to the edge, Dedede will snap to it. It is also possible to use the Super Dedede Jump as an edgeguarding move, due to the strong meteor smash hitbox, but this is usually considered too big of a commitment to do on a consistent basis.
A player can cancel the move by tapping down in Brawl, or up in Smash 4 and Ultimate. This also allows the player to adjust Dedede's horizontal momentum and grab the ledge in situations where Super Dedede Jump would otherwise fail to do. If it is done far enough from the ground, Dedede will suffer less landing lag as well. However, if it is done too close to when Dedede lands, he will become extremely vulnerable; instead of just getting up, he will fumble around for about a second and a half before getting up, forcing delicate strategy when canceling the move. If Dedede hits a ceiling while using the move, he will fall helplessly.
Amusingly enough, if this move is used under a low-gravity effect (through certain stages, such as Pirate Ship and Spear Pillar, or through Special Brawl options), Dedede comes down at ridiculously slow speed and can travel absurd distances horizontally. This glitch can also work while Dedede is standing on ink in Super Smash Bros. Ultimate. By the same token, its utility as a recovery move is hampered by high-gravity effects, but it becomes much more difficult to avoid.
Super Dedede Jump is one of King Dedede's main attacks from the Kirby series, including his debut in Kirby's Dream Land. In the Kirby games, when Dedede jumps and lands, two stars would appear on each side of him, which Kirby could swallow and spit them back at King Dedede, though Kirby can't swallow the stars in Brawl.
Special Move customization was added in Super Smash Bros. 4. These are the variations: