The evil villan
of the Kirby
series of games. Though I'm not familiar with the plotline
of the original game, I do know that Dedede was actually trying to do Dream Land
a good thing in Kirby's Adventure
Dedede is more or less a blue penguin who wears a Santa Claus-like outfit, has abilities similar to Kirby's, and has the added benefit of having a mallet with him all the time.