A highly defensive ability, Kirby covers much of his body with spines, which often means more than an "Ouch!" for enemies that draw near, and allows Kirby to stick to surfaces. Likewise, Kirby is immobile when the spines are out.
Buster is the tenant in Apartment 301 in Dom Woole's apartment building in Quilty Square of Patch Land in Kirby's Epic Yarn. He offers minigames where Kirby has to defeat a certain number of enemies before time runs out, after Kirby decorates his room with the appropriate furniture obtained from the various Treasure chests in the game. Like all the other tenants, he sometimes visits Kirby in Kirby's Pad, and he offers a secret fabric after all his minigames and the main story has been completed.
Dark Mind is the final boss and mastermind behind the events in Kirby & the Amazing Mirror. He has the appearance of a crossover between Zero and Nightmare, and may be their mirror counterparts in Mirror World, a parallel world to Dream Land connected by the Rainbow Route in Mirror World to a mirror-portal high up over Dream Land. Dark Mind sought control over Mirror World and presents a threat to Dream Land, and trapped Meta Knight inside after he failed to stop him.