Kracko

Kracko is a recurring boss character from the Kirby series. It has, in one form or another, appeared as a boss in every Kirby platformer to date, with the exception of Kirby 64: The Crystal Shards and Kirby's Return to Dream Land. It first appeared as a boss in Kirby's Dream Land and has appeared in almost every game since then. Kracko is most often fought in its full form, but is sometimes fought in its premature form, known as Kracko Jr., before Kracko in its full form is encountered. Kracko appears to have legions of monsters, usually one-eyed creatures, supporting it, such as Waddle Doo and Flamer, both of which it summons to its side in various fights. Kracko is often fought high up in the clouds. The manual from Kirby's Dream Land describes Kracko as a "lightning fast foe"

Krack! Goes the Kirby!
Kracko is the Final Boss of ''Krack! Goes the Kirby! ''Kracko Jr. transforms into Kracko after his defeat. Kracko then reveals his plan to Kirby. Kracko is going to send an army of Li'l Krackos to take over Castle Dedede and claim rule over Dream Land. Kracko shocks Kirby through the floor of his palace, but knows that he will survive. After Kabula defeats the Li'l Kracko army, Kracko comes and destroys Kabula, forcing Kirby, Dedede, and Bandanna Dee to flee to Kracko's Palace. Once they reach the Throne Room, Kracko attack's them. After his defeat, Kirby and friends escape just before the palace explodes with Kracko still inside.