Personality and Bio
King Nixel is the Ruler of the Nixels. He hates fun and creativity, and he wants to rid the world of it. He often sends Major Nixel to raid Mixels Land and steal all the Cubits so the Mixels can't fight back. King Nixel made no appearance at all in the first season of the show; his first appearance was in the special Mixel Moon Madness. At the end of the episode, Major Nixel is seen reporting Mixels on Mixel Moon to King Nixel, resulting in him shouting angrily. Major Nixel is very afraid of King Nixel. He later appears in the episode A Quest for the Lost Mixamajig as the main antagonist.
King Nixel is a dark and powerful tyrant that will do anything to ruin fun in the Mixelverse. He is so intimidating that even just the sight of him made his own army shake in fear, faint, or bow immediately.
However, while undisguised, King Nixel is whiny and weak.
King Nixel is a humanoid figure. He is portrayed as tall and limber. His head resembles that of a normal Nixel and carries a crown that serves as his symbol of power. His body is hidden by a cloak but is revealed to be made of smaller Nixels. Inside his head resides his core. It resembles a small Nixel and carries his mind and acts as his "brain". It also has a crown.
The Quest for the Lost Mixamajig
King Nixel was fully revealed in A Quest for the Lost Mixamajig. Fed up with Major Nixel's constant failures, King Nixel announces that he wants to take matters into his own hands. King Nixel's plan takes on a different and smarter strategy; rather than trying to steal the Mixels' Cubits, he wants to gather them up into one spot and then capture and destroy the Mixels. To do this, King Nixel creates a hoax involving a treasure called the "Mixamajig" that can only be found by "the chosen one." The chosen one being the Mixel who is given the magic key to the treasure. In reality, several Mixels were given a key, so when all the Mixels arrive at the spot the keys led them to, a portal between Mixels Land and Nixels Land, a free-for-all breaks out. While the Mixels are fighting, King Nixel sneaks up and traps them all in his airship.
However, once the Mixels realize the whole thing was a setup, they're quick to mix with each other, form an army of Maxes, and break out of the airship. But when King Nixel is challenged, he removes his cloak, revealing that his body is made entirely out of Nixels. A huge swarm of Nixels comes to their King's aid, climbing on his body and causing it to grow even larger. The Maxes realize that they can't beat King Nixel, so they decide to mix again. As this is basically mixing together every Mixel in existence, the result is an extremely powerful and colossal creature called the Ultra-Miximum Max. King Nixel and the Ultra-Miximum Max struggle for some time, but the Ultra-Miximum Max eventually gets the upper hand. The Ultra-Miximum Max manages to destroy the King's artificial body, ripping out his core, which resembles another generic Nixel. It then flees the scene, running off for King Nixel's mother.
Nixel, Nixel Go Away
King Nixel reappear in the Mixels series finale, where he takes over Mixopolis in attempt to get his revenge. Some time after the defeat, his Nixels discovered Mixopolis. At first he was willing to destroy Mixopolis but then through to make the city his own, and he came up with a new plan to scam the Mixels with a product called "I-Cubits". Their appearance may look like a regular cubit but instead of allowing the mixels to mix the I-Cubit drain the color out of them, and then a few days later, every Mixel in the city was lined but and traded their colored cubits for the new I-Cubit (except the special's protagonist, Booger).
Later, Major Nixel revealed the news that almost every cubit have been traded and King Nixel is happy and the plan is ready for phase 2, but Major Nixel told him that there's only one cubit missing but he calls it nonsense and told him that one cubit will not be enough to defeat and yelled at him to go, and then he released his Nixel army to attack the Mixels. The Mixels were unable to fight back because of the lack of cubits and was turned into colorless zombies and the Nixels drained all of the colors in the city.
Booger and his friends are left alone and notice the Nixels are unloading barrels of the cubit reduced into their pure liquid essence. Booger then plans to wear cardboard boxes to disguise themselves as Nixels. Meanwhile the Nindjas discovered that the trouble is created by the Nixels and they were able to go to the building and see Nixels and they mix together making the Nindjas Max and they tried to defeat the monsters but were defeated. and then the Newzers notice it and Screeno decided to follow them. The kids notice they got security and they was able to go pass them and head to the center of the building. Meanwhile the Newzers were unable to get pass guards but luckily Camsta was able to lift them inside, and then King Nixel called Major Nixel to ask if they are anymore Mixels, he then is happy and tell that the Mixels are fools as it was so easy to fool them to give up their cubits, and the Newzers record it to Mixopolis Studium and the remaining Mixels are there and he didn't notice and continued making fun of them until a Nixel told him the news and he ordered the Nixels to attack the Mixels and now the plan is up to it's third and last phase and Booger reveals himself and says that the Nindjas will defeat him, but he reveals them under his control and told the Mixels that he was able to scam all of Mixopolis by taking all the cubits and he said that he reduce the cubits down to their essence and load it all into an misslie and planned to launch into the sky and it will absorb all the colors and Booger said he's won't get away of it but he regard it as he is just a small Mixel and he have all the cubits and then Booger show his cubit and king nixel is shocked and ordered the mixel zombies to attack them, but the mixels was able to stop them with Coordinated Group Dancing, his Nixels then fuse togethr into a giant Nixel and now the Mixels must replace the I-Cubit with Booger's cubit and booger with the help of the Nindjas were able to switch them and restored the Mixels but King Nixel pressed a button and sealed him into the missile and the missile launched and King Nixel is excited as Mixopolis is finished but then the missile malfunction and got blow up and all the cubit essence start raining back down to the city restoring the color and the Mixels and they were able to overpower the Nixels, and then King Nixel's body got "mixelized" but his core exited his head hopped on a rocket to escape and said that the Mixels haven't seen the last of him, but a bug zapper appeared destroyed the core and revealed to be Slusho and Tungster, defeating him for good.
- King Nixel behaves and is structured similarly to how Void Termina from Kirby Star Allies behaves and is structured:
- Their core has to be destroyed to kill the entity.
- Their default form is a humanoid giant in relation to the protagonist.
- Both villains are fought multiple times, and are defeated when their core is ripped out.
- Both villains are omnicidal and wish for destruction.
- However, there are a few differences.
- King Nixel can speak properly, whereas Void Termina cannot (He just growls and roars.).
- King Nixel is fought only twice, whereas Void Termina is fought 3 times.
- King Nixel's core only turns into ash when it is defeated. It also does not attack after his main body is destroyed. However, Void Termina can still attack with his core even when his physical body is destroyed.
- King Nixel cannot go off-world without a spacecraft, but Void Termina can.
- King Nixel needs his minions to help him change his form, but Void Termina can change his form alone.
- While Void Termina has 4 or 5 phases in battle, King Nixel has only 2 or 3 phases for each battle.