Monster

Demon Beasts (called Monsters in the 4Kids dub, possibly to avoid religious connotations) are monstrous creatures created by Nightmare in Kirby: Right Back at Ya!, which he sells for a very heavy profit. King Dedede often buys these monsters in an attempt to defeat Kirby, but in almost all cases Kirby is able to counter the monster's attacks and destroy them, much to the dismay of Dedede.

While most of the monsters are created by Nightmare, a handful of them, such as Lovely, are simply denizens of Dreamland, which he brainwashes into violent creatures.

While most of the monsters were created specifically for the anime, some monsters like the Ice Dragon or Fire Lion originated from the games. As of now, with the exception of Phan Phan, none of the monsters created for the anime have appeared in any of the Kirby games.

It is revealed later in the series that the Demon Beasts do not start out as violent creatures. After being created, they go through a rigorous training program which corrupts their mind and makes them evil.

Notable Demon Beasts

 * Octacon
 * Blocky
 * Bugzzy
 * Kracko
 * Umiushii
 * Dedede Stone
 * Slice n' Splice
 * Popon
 * Urameshiya
 * Sasuke
 * Noddy
 * King Dedede’s Submarine
 * Honker Stomper
 * Pukey Flower
 * Ice Dragon
 * Susshi
 * Tornadon
 * Imohmushii
 * Yamikage
 * Floaty the Drifter
 * WolfWrath
 * Lovely
 * Ice Dragon Robot
 * Monsieur Goan
 * Galbo
 * Walky
 * Hardy
 * Fire Lion
 * Cobgoblin
 * Broom King
 * Erasem
 * Masher
 * Fridgy
 * Gerasuu
 * Particle Ghost
 * Sharbon
 * Gabon
 * Domestic Servant Robot
 * Flame Feeder
 * Dedede Doll
 * Denjaa
 * 3 Color Fighters
 * The Martial Arts All-Stars
 * Windwhipper
 * Togeira
 * Belly Buster
 * Teacher Creature
 * Crab
 * Kirisakin
 * Max Flexer
 * Cold Virus
 * Masher 2.0
 * Dirk
 * Kirk
 * Smirk
 * MT2
 * Delivery Man
 * Mole
 * Squishy
 * Doctor Moro
 * The Dinosaur Army
 * Kirbysaurus
 * Paint Roller
 * Bonkers (as a demon)
 * Red Viper
 * Trash Basher
 * SlicerDicer
 * Nekketsu
 * Mumbies
 * Ozone Hole Monster
 * Ebifuryaa
 * Maimaigon
 * Anige
 * Fang, Rip, & Turbo
 * Wheelie
 * Fryclops
 * Chuckie
 * Monster School
 * Dogon
 * Boomer
 * Hot Head
 * Yaban
 * Mr. Frosty
 * Whiskers
 * Jukid
 * Four weird Pierre-looking clowns
 * Poppy Bros. Jr.
 * Whippy
 * Demon Frog
 * Heavy Anaconda
 * Heavy Lobster
 * Mini-monsters
 * Chess monsters
 * Kaiju-esque monsters
 * Unnamed Monster Spirits
 * Destrayer
 * Air Rider
 * Captain Stitch
 * Meta Knight (of note, he has his Wings, and his sword looks like the Early Video Game Version - Compare to Master.)
 * Dark Matter
 * Master Green
 * Efrite
 * Haboki
 * Sweet Stuff
 * Mr. P. Umpkin