King Dedede has immense girth, and often tries to crush his enemies under his feet. He also has the ability to inhale air, and enemies, like Kirby can, which also allows him to fly. He is also quite skilled with his mallet, which is sometimes mechanized.
In the Pathverse timeline, Dedede begins the construction of Devotee Castle, to increase the morale of those who visited it and in honor of The Masters. When the castle had been completed, traveling nomads decided to settle around the castle. The number of citizens around the Castle built up, with business developing and homes increasing, the area was eventually known as Devotee City. During the Second Age on the 22nd Anniversary of Devotee Castle, one of Dedede's advisors, Bandanna Dee, is kidnapped by the Blind Man for him to make his future city economically stable. Dedede is paranoid because of this, and thus does a terrible job at being a king, which ultimately leaves most civilians near poverty, leading to raids on Devotee Castle. One of the raids (Lead by Micool the First) had resulted in the deaths of most the remaining Waddle Dee Advisors (Some managed to escape Devotee during the raid) along with King Dedede. Because of this, Micool the First was crowned as new monarch of Devotee City, which he handed down to Micool the Master.
Dedede will be a hidden character in SSBC. He is unlocked by defeating Waluigi in less than 3 mins, 25 seconds. When story mode is exited, it shows the Collision War battlefield being dominated by a new enemy. Playing as Kirby, you must defeat him to unlock him.
King Dedede will be playable and he will be the boss of level 2 (Adventure Mode).
Mario Kart 8: All Hills
King Dedede apears again in the story mode. In the beginning, he and Kirby attended the Pop Star Grand Prix (he starts to make a Forget Me Spray in the progress) . They were than invaded by Dark Matter and King Dedede lamnded face first into pavement in the village. Kirby soon walks by him. King Dedede later got out and escaped into the city. After World 3, King Dedede finds Kirby and his new partner (Lavora) that he gets a little shocked over. So, he started to finish his "Forget Me Spray" to make Kirby forget about the adventure. After World 5, he finally finishes. He pulls it over to Neo Bowser City to find them gone! After World 6, he looks on Daisy's Cruiser and finds King Boo. He tells him that Kirby and his new friend had deafeated him hours ago. King Dedede gets mad! After World 9, Cheif Chlly gives him a dart gun. He leaps at the two and shots them both! After World 11, King Dedede finds the two alive. King Dedede ecapes to Rainbow Road and perpares to battle. After World 12-6, Kirby and Lavora finally finds him. King Dedede has a new weapon, the Robo Dedede. After his defeat, King Dedede jumps back to Bowser's Castle to get his "Forget Me Spray". Before the final boss, King Dedede comes back with his "Forget Me Spray" but is too late! At the ending cutscene, King Dedede slips and a rainbow banana from out of nowhere and pressed a button of his "Forget Me Spray" and the two forgot the amazing adventure ever 'cause of Dedede.
Dedede appears in this game as a captain. He uses his hammer to bat, so he has a harder time hitting the ball. However, he has one of the highest batting stats in the game. His running and pitching, however, are bad, meaning he's not very useful if he doesn't hit home runs.
In The Throne of Dream Land, King Dedede finds his authority challenged by his own family, Queen Cecece and Prince Bebebe. Unable to bring things to a peaceful conclusion, Dedede is forced to barricade himself and his family in the Grandmaze, a method of criminal execution he has used for 50 years. While trapped, Dedede and his family begin to realize that their greed is worthless, especially after converstaions with Gimmick V. Dedede attempts to activate the Teleport-Exit, but KAOS-com interferes. The Grandmaze software is released, and a "maze effect" covers Dream Land. Dedede watches helplessly as Gimmick V embarks into the Grandmaze to stop KAOS-com. The game ends with Dedede granting Gimmick hsi freedom, and the royal trio bidding the robot farewell.
King Dedede is one of the main protagonists in Kirby 65. He is called by Kirby and gladly joins him to save Popstar Galaxy. He serves as a boss, too, under the possession of Minus Zero. In his boss fight, he grows to a giant size and can fall quickly, meaning Kirby has to act quickly.
An amiibo figure of King Dedede exists! For more info about these amiibo, see this page.