Necrodeus

Necrodeus is the main villain of Kirby Mass Attack. He also serves as the final boss in the game.

He is a "head and hands" boss, similar to Wham Bam Rock and Wham Bam Jewel from Kirby Super Star (Ultra), and Master Hand and Crazy Hand from Kirby & the Amazing Mirror.

Physical Appearance
He has red eyes and a head that resembles a horned skull with matching bony hands. He has a third eye socket, but no eye is seen within. His body is made of purplish black smoke, which during the beginning cutscene almost resembles Nightmare's cloak. He wields a staff which he uses to decimate Kirby at the beginning of the game, but swallows it in the cutscene before the final battle, requiring Kirby to destroy him in order to retrieve it. When Necrodeus attacks, he reveals that he has an extra Zero-like (specifically, Zero after his core broke away) appendage inside his mouth, which he uses to fire a laser beam.

Attacks
Necrodeus has multiple attacks, all which can KO a Kirby in one hit. First, he will use his remote hands to smash the ground below him and try to close his palms around the Kirbys. He will also use his index fingers to produce sparks of electricity.

He uses other attacks as well in his third phase. These moves include spitting out metal objects that shoot lasers in different directions, producing larger sparks that bounce off of the screen, and using an eyeball on the inside of his mouth to produce a blast of energy. Necrodeus also has the help from Skullions, horned versions of Skullys. Skullions, like normal Skullions, turn purple and have the ability to snatch a Kirby from the player's grasp. If a Kirby is grabbed, the Skullion will float over to Necrodeus, who will devour the Kirby and eliminate it from the fight.

If the eyeball inside his mouth takes enough damage, his head will crack and shake rapidly. If the head is attacked, the player will be required to tap as fast as they can. If the player fills the bar, Necrodeus' skull will be destroyed, ending the game.

Trivia

 * In the beginning of the game, Necrodeus has a cape, but it is not seen in the final battle.
 * Necrodeus seems to emit a deep metallic cackle in battle, making him the fourth final boss to cackle during the fight against him, the other three being Drawcia, Marx, and Marx Soul.
 * Necrodeus was possibly referenced in Find Mii II/StreetPass Quest II. After the Ultimate Ghost is defeated, the Dark Lord grabs the king, who then notes that the Dark Lord wants to plunge light into darkness, much like the Skull Gang.