Exateno, the "Wicked Star"
Exateno SI
Art by Shadow Inferno
Full Name Exateno
Current Age Unknown, stated to be millions years old.
Date of Birth Unknown
Gender Male
Species Star Beast (aka Star EX)
Align Lawful Evil
Current Status Immortal
Star Horde
Domination, making gods biting the dust, good fights, showing that light is powerful, making his foes to fear him
One-sided fights, Pyrrhic victories, mindless destruction, irresponsible gods, being forcefully told into what do to, laziness
Ability/ies Grow giant, Inhale, Copy Ability, reincarnate creatures, weakens darkness with his light power.
Vulnerable To His orb on his tail getting hit (this is his weak spot).
Nationality X-Star
Height Gameplay: Approximately ~150ft

Real: Approximately ~350ft (in height, not length)

Weight Approximately over 2500 lb.
Sexuality Unknown, presumably straight
Exateno the Wicked Star
First Appearance Kirby & Magolor: Huge Trouble! (Canon)

Fantendo Smash Bros. Fatality (Foreshadowing Bonus Boss)

Series Kirby (series)
You all reached here with bravery, mortals...but once I conquered your planet, you will have the obligation to serve me. If you refuse, then I am afraid that I will obliviate you...or even becomes my personal treats!
Exateno in the second battle, Kirby & Magolor: Huge Trouble!

Exateno is a god-like and serpent-like villain who debuted as the main antagonist of Kirby & Magolor: Huge Trouble!, and is one of the final bosses of the Kirby series. He leads the colorful but monstrous army called the Star Horde and aimed to conquer all planets of the universe, as well as taking all habitats as either prisoners or soldiers. He is also one of the sources of Exa-Energy, a dark blue-teal colored energy star that can make any beings huge and becomes more powerful.


He was once a regular Star EX who is shy but intelligent. As he travels through many planets, he saw too many creatures that selfishly pick and enslave weaker creatures, or even some of them causing war "just because". These behaviors had greatly disgusted him.

At an unknown planet, one strong creature had captured him and force him into slavery, and despite Exateno's surprisingly good effort during many, many years, the creature remains ungrateful and abused him for his amusement. The poor Exateno cannot stand it and run away despite the creature's words that he cannot survive.

As Exateno feel guilty for trusting the Ungrateful Creature, he trains himself to be more skilled, but he then noticed that he had an orb that gives out infinite energy, to the point that anyone who consume them become bigger and stronger. He uses them on himself, and become significantly larger. When he returned to the ungrateful creature's oasis, the latter one is so shocked and scared that he attempted to run away, but is caught by Exateno, and the now powerful being threatened to eat him if the Ungrateful Creature refuses to change his ways.

The Ungrateful Creature had actually said that he prefers to be eaten, but Exateno actually whacked him with his tail instead and calls him an ungrateful coward. Ever since the event, Exateno quickly understands that the Ungrateful Creature turns out to be a Dark Slaverer. Angered that he met yet another evil dark creature, Exateno vowed to conquer all planets of the galaxies so that no more pointless wars and pointless slavery will ever happen.

Due to his complete immortality, nothing in the universe can truly bring him death, no matter how powerful it is. He can still be defeated, but his sheer power could make the people believe he couldn't be until proven otherwise. However, shall he get defeated, he becomes powerless for a while. Even the evilest creature should not come across with this beast does to his extremely intense light energy that can destroy virtually everything, and thus he became feared by most, if not all forces of darkness. Thankfully, he does not undergo destruction for pleasure and only uses his power to fight.

Exateno had been in fierce battles with multiple foes in his quest for conquest, but he defeated them all despite, in some battles, receiving severe damages, but he doesn't care much as he heals himself after each battle. When any sort of dark forces gets on his way, he uses his intense light power which does weaken or even destroy them.

He also possess a more powerful form known as Infinite Exateno, although he will only use this when his plans keep failing and becomes really infuriated.


Exateno is a large (or immense if he becomes Giant) serpent-like creature, with blue skin (which seems to be actually furs) and green stripes, purple hair, and green lower jaw as well as sharp teeth. He also has spiked shoulders and green elbows, and his front arm is more covered of furs and has sky blue crystals. He has a black chest which is covered by two golden stripes. His face has a mask-like wear with a dark-green pattern and his eyes are a combination of red, white and purple.

His hands have a dark teal star-like pattern on his knuckles and an orange orb on his palms. His back and his tail also have more spikes and more crystals of the same colors. The tip of his tail is a large, light blue orb that serves as his source of EX Energy, which is shared with most Star Exes.

As Star Exateno, his body becomes bright yellow, and his hairs into red, his furs into silver, and his mask-like equipment becomes dark-grey.

As Infinite Exateno, his body becomes a shifting color of teal and crimson, and his spikes becomes his cannon-modeled limbs. His two hands separates from his body, and he his fangs becomes black-gray. His eyes are also constantly changing the colors.

Abilities and Weaknesses

Exateno's abilities are what him stand out from other Kirby villains; while his power of the light is not unheard before, he is more prominent about this, and being a massive dragon-like being, he is capable to downright damage or even kill normal beings with any of his attacks, and he is surprisingly physically strong, as his tail swipe attack is often prove fatal for even the more resilient characters. The reason why Kirby and his allies are able to withstand his attacks are thanks to the nine Light Crystals they collected, allowing them to resist most of his attacks fairly.

That is to said, does to such massive size, many attacks had no effect on him, and stronger attacks will only leave a scratch damage. This is even when his orb is attacked, as it only deals slightly more damage. Worse still, he also tend to have very high HP which compliment his toughness. His such massive size does make him vulnerable from powerful attacks, but attacks that instantly kills any mortal will have no effect on him.

While Exateno can be defeated, he cannot be killed regardless of method, and he is immune to gravity and darkness, which makes even black holes useless against him (but can absorb Exateno's light attacks) and dark attacks worthless. This explains why most of the likes of Dark Matter and other dark-using Kirby villiains fears him so much. When he does get defeated, he can only get temporily powerless.

In addition, his own energy, the EX Energy, allows him to resist attacks from gods and abomination, and combining with his light attacks, he can quickly defeat or even exterminate them and any opponents that prominently using darkness.

The infromation method above makes Exateno way too dangerous, as he could potentially destroy even creators, although he can be sealed away with a huge crystal which can absorb him. The huge crystal would be vulnerable from powerful attacks however, and it is usually heavily guarded.

His well known attacks are his inhale attack, which works similar to Kirby, up to including Copy Ability although this one is for a short limited time, his aforementioned tail swings, spitting out stars that explode on impact, crunching his opponents, and using portals to lead him elsewhere or to quickly escape from a devastating attack.

That is to say, he is not without his weaknesses; in addition of taking more damage when his orb is attacked, he also takes damage from electric and, ironically, light-based attack regardless of if the user is weak or strong, but the effect is minimized if used by a god, an abomination or a dark force.

Electricity can circulate through him and can strike his orb as a result, while interaction with any light source other than his own will cause his mind to stun for a while, does to his eyes being adapted to see even at the brightest days or at the darkest nights.

Exateno becomes even more powerful in his Star Exateno form, and he can hold his Copy Ability for a longer time, while also becoming more resilient and quick. However, while his resistance toward gods and other enemies the EX Energy is strong against had greatly heightened, he also can get hit by mortals, which is why he have to use it sparingly.

His Infinite Exateno form is by far his strongest, as he can easily defeat even the most powerful gods and even destroy anything that cannot be destroyed, but at the cost of having his orb being moved to his chest, making it an easier target to mortals. That said, he also become unable to use Copy Ability in this state, and he becomes more prone to build up stress, as if he get damaged too many times, he will get so angry that he ended up badly damaging itself does to the EX Energy reacting badly to this reaction.


Kirby & Magolor: Huge Trouble!

Exateno's debut of the series. He was seen in the intro cutscene, although shadowed and only his spiked back was seen in rainbow color, and his full body was not known until at the final stage of Execrable Star, the second-to-last world and his hideout planet that hold out the eight previous planets. His battle was in his normal size, but after his defeat, he saw the amount of shadow that fled from his planet Spoilerhide|which he actually unleash it in order to distract Kirby and company and call them out for jeopardized his "duty" to stop the darkness that would infest the Pop Star and potentially destroy it.

After Kirby and the other heroes had defeated Spoilerhide|Omega 0, it all turned out to be a ruse as Exateno had revealed that he only toyed with them, and then he challenged them to the real duel in the X-Star, his true hideout. Upon reaching there, he fought harder than usual, and after his second defeat, the Wicked Star grew gigantic and take on the heroes one more time (while eventually even tried to eat them) before being defeated for good and get powerless for a while, which allowed Kirby and the others to have liberated all prisoners and used the Lor Starcutter to get back at their home planet, while Exateno, who saw his defeat, get into a roaring fury.

However, that defeat was not enough to stop him, and at the Ripple Star, during the celebration, he came all of sudden and singlehandedly sealed Kirby, King Dedede, Meta Knight, Bandanna Dee, Magolor, Ribbon, Waddle Daa and Prince Fluff in a huge crystal, and then did the same thing with the rest of the Ripple Star people.

Unfortunately for him, the Helpers came to the rescue and defeated him twice again, thus rescued the main heroes and the Ripple Star citizens. During the True Arena, when he saw that the plan failed one more time, he became completely mad and unleash his Infinite form. However, he got taken down again, and his explosion caused him to turn back to his normal state, as well as powerless again, then pulsed by the explosion to the Execrable Star and moved it (as well as the X-Star) into very far away from Pop Star, and decided to finally stop before he will go crazy. It is currently unknown if he will actually return, the creator, Samtendo, said that he would be back but in an unexpected way.

Pause Descriptions

The Ultimate King of Light, who commands the Star Beasts ever since thousands of years ago. He doesn't seems to be pulling the true extent of his power...
First battle

Exateno was holding back to test his skill, but now he will not let Kirby and his allies from escaping, with more various powers he have of his sleeves.
Second battle, phase 1

Exateno reveals his true size and power, and with such power, he really lives up to his title. But Kirby and his friends fought his shorter giant henchmen, so they will prevail... but is it all he got?
Second battle, phase 2

The Wicked Star EX was not truly damaged, and only faked his injuries to let the heroes' guard down. But as Kirby quickly discovered, the only way to defeat him is to use the EX Energy and fight him with it. Heroes of the universe, please do not let him defeat you, and save the universe from his iron first!
Second battle, phase 3

Exateno powered himself up and with the EX Energy the Helpers absorbed, will cautiously fight them in hope to repel them away. But it seems that he have another trick, as the Helpers are unaware of...
Star Giant Exateno, phase 2

Exateno's final form, where his power reaches no limit, allowing him to defeat what cannot be defeated. Even Kirby might not be able to stop him... not without the help of all of his friends he helped and trusted.
Infinite Exateno

Fantendo Smash Bros. Fatality

Exateno's true debut, albeit possibly not canon, unlike his next and official debut. He is the ultimate alternative, secret boss to Toxia, and serves as the ultimate boss of the game, even when compared to other bosses that can be defeated (albeit reasonably less difficult than Gog, the unGoggable). While his role is unknown, it is revealed that he will attempt to murder Unten after the latter refuses to serve him.

The first time Unten sees him, he literally dropped his jaw before he put himself back. This seems out-of-character from Unten but the size and power of Exateno do explain the suddenly frightened stance of Unten.

Exateno nonetheless serves as the ultimate test for expert players, with a mindblowing amount of 2000% HP, higher than even Toxia's combined HPs, and his huge size and power makes him difficult to fight with, with his various attacks, including his tail swing, his inhale ability, and controlling the light to make him more difficult to be seen. The first time, all of his damaging moves will OHKO Unten, so the player must instead dodge him at all cost and hope for an opportunity to fight Exateno back. Attacking his core will only cause 1% damage anyway, and his HP bar will only show at the second phrase.

After Unten had survived long enough, the hidden FDX robot, FDX-000, will jump to save him from Exateno's tail swing, and the robot lets Unten melts her body, which the melts results in the robot to become part of Unten's Anti-Biohazard Gear which increases the Attack and Defense stat to enormous proportion and gains a power bosst. As such the real battle will begins.

Exateno keeps all of his used attacks, but with the addition of summoning various minions, in which he revive them shall they get defeated. However, none of his attacks will OHKO Unten now, except his brutal tail swing. Another addition is that Exateno can now copy Unten's abilities shall his inhale attack had made him eaten Unten (although like Kirby in Super Smash Bros. and in this game, a star will send back in the air and Unten will be sent back into the field). When Unten's power triples, however, he become reasonably much less difficult, or actually much easier if the player masters the doding techniques, to be defeated.

Team All-Stars


Boss Battles

The very first Omega Boss, who is nevertheless no less dangerous than the other Omega Bosses. Exateno is an interstellar conqueror who will bring peace to all beings... but also by making sure to slay out all war-making beings. This dragon is a god, and the ultimate darkness slayer, as even the Dark Matter fear him!

In July 11, 2017, Exateno is added in Boss Battles as the very first Omega Boss (Guramina notwithstanding, as she is usually exclusive to Arcade Mode and Chaos Campaign), and was the only Omega Boss prior to the addition of Giant Thief, Awakened Mike Tyson, and the Phantom of the Bwahpera in September 12 of the same year. Samtendo09 added him in order to kickstart the Omega Bosses, despite that Exotoro was the one who added this powerful type of bosses.

Exateno is fought in five phases like most Omega Bosses, and have a stunning amount of 350,000 HP, being behind Bill Cipher with the most HP. However, the amount of HP itself can be deceiving, as Exateno also takes halve damage from all attacks, but takes 1,5x damage when his orb is attacked. He is however savvy about it, and the orb is only exposed in the arena for a very short time when he uses his tail strike, his most powerful move.

He also summons minions and use the inhale ability like in his games of origin (Fantendo Smash Bros. Fatality and Kirby & Magolor: Huge Trouble), as well as using Star Spits. Does to such resilience, it takes patience, great dodging skills and effort to defeat him. He also uses his Star Form and his Infinite Form in his later phases.

Exateno is one of the few bosses who can outright OHKO any player, using his last resort attack involving chomping them out to death, but it can be stopped by a charged attack to break his weakened teeth.

Zonal Fever

Exateno is confirmed to be one of the various bosses in Zonal Fever, but it is currently unknown how he would be fought in this game. However, he is surprisingly fought with Exa-Sectonia, and Samtendo, one of Athena Hawkins' friend, had made the idea of both of them being fought once, and that each others are not sided with each others, but do prioritize on killing the player characters. Exateno, along with Meta-Form and Exa-Sectonia, are the only representatives of Samtendo09.


Exateno, in his usual state, is a reliable and benevolent leader but a beastly and feared monster who have a hunger for conquering all planets he sees. He usually act in an easygoing manner but goes into a more ruder manner when ticked off or insulted, and will only leap into action when facing a threat or if he is under a roaring frustration.

Shall he fail, he will attempt to destroy anything or seal anyone away who are responsible for his defeat. He does enjoy to be feared by his enemies but become concerned if his allies are fearing him instead. He also only insults the others when angered.

He has no mercy on disobedient prisoners, and anyone who tries to escape will be ended up to be captured back or worse, eaten as his personal treat. However, he does accept anyone strong or skilled enough to fight and will serve him. Any act of betrayal will cause him to seal it for a good while.

He does not treat his underlings as trash and will not hesitate to revive them, although he will be rather disappointed when they resulted from a failure. However, he does not like that he and his army being compared to any force of corruptible darkness, and the worst for his own men, when he is huge, is to be eaten by their own leader out of frustration, but it occurs rather rarely.

He is also somewhat of a trickster and loves deceiving his own enemies in order to stall or lose them their focus. This, on top of his power, can be very difficult to anyone not prepared to face him.



  • Does to his ability to become larger, Exateno is considered to be as the longest (by height) Kirby villain to date, and the largest organic Kirby villain to date. Samtendo even said that he could be beyond his usual Giant size, but Exateno himself refuses to do so as he could damage his goals when taking on his foes.
  • His title, "Wicked Star", is also an acronym by the first letter of the following ten first worlds; Waffle Woods, Ice-Cream Icebergs, Chocolate Castles, Kiwi Canyons, Eggplant Electricity, Durian Desert, Salt Sardis, Turnip Trails, Apricot Airs and Rice Resorts.
    • With the last two worlds (Execrable Star and X-Star), this also makes "Wicked Star EX".
  • Exateno's name is actually an origin of the prefix exa, which is a unit prefix with a factor of a quintillion (1 000 000 000 000 000 000) or a power of 1018, and is easily one of the highest unit prefix. The teno part is still unknown but may be a play of Titan and one (which he is the highest rank among the Star Horde).