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KSA Void splash screen.png
Void is introduced in Kirby Star Allies as he enters the battle.
First game Kirby Star Allies (2018)
Weakness(es) Friend Hearts
Relative(s) Void Soul
Void Termina
Similar to Kirby
Chaos Elfilis (spherical form)
Dark Matter
Dark Mind
Drawcia Soul
Miracle Matter
Star Dream Soul OS
Theme music

Clip of Void's unique battle theme.

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The final battle at hand, Void takes his first steps toward a new age. In place of tyrannical rage, will he find...naptime? Gentle breezes? Treats? He may even dream again...
A dream of friends reunited!

— VS Void

Void, titled Astral Birth, is a secret boss who is faced only in The Ultimate Choice of Kirby Star Allies, at the end of 'Soul Melter EX' difficulty after defeating the first three phases of Void Termina - True Destroyer of Worlds. He is a souped-up version of Void Soul, serving as the true final boss of Kirby Star Allies since Version 4.0.0. Despite his position as the true final boss, Void does not need to be defeated for 100% completion of the game, but beating him is needed to crown a save file and will unlock the Dream Button which can switch Kirby's look between the default modern one and the classic style from Kirby's Dream Land.

Physical appearance[edit]

Void has a white color scheme (black during certain attacks and the pre-splash screen cutscene) similar to that of Zero, and there are multicolored "veins" (or cracks) on his body like those of eyeballs. Red/black spots move about his body, often forming faces, including one similar to Kirby. The background of the splash card for Void is a direct reference to the Hyper Zone from Boss Butch of Kirby's Dream Land 3, further cementing the connection to Dark Matter and Zero.

Similar to his normal counterparts, Void can be damaged by directly tossing Friend Hearts at his body.

Boss Battle[edit]

The following lists all of Void's attacks. All attack names listed here were carried from the ones of the respective attacks from the fourth phase of Void Termina, which in turn come from a Japanese Kirby Star Allies guide, while the names of the new attacks not present in the original Void Termina fight are conjecturally named.

Void's attacks  
Attack Description
Pleasant Dream[from internal data]
First, Void fires barrages of energy bullets in four directions but at a faster rate of fire while rotating the firing angle, and spreading out bullets sometimes.
Unlike his normal counterparts, Void's Pleasant Dream bullets still do damage even when guarding.
Then, Void shoots a ring of 11 small lasers that cover nearly the entire screen. This happens three times, where Void slightly alters the angle each time he fires. The effect makes him look somewhat like a cartoon Sun.
These lasers can only be blocked by special guards, e.g. Ice and Spider.
Shooter Cutter[conjectural title] Void fires four cutter boomerangs around himself for two rounds.
Afterwards, a third round is rapid-fired while Void is moving across the stage left-to-right or right-to-left, unlike in his weaker form.
These cutters can be swallowed for the Cutter ability.
Sprint (1st)
(internally known as Bound Pond[from internal data])
Void retreats into the background, splits into four, and charges forwards in pairs, slamming the floor in an attempt to ram Kirby and friends.
This resembles the Bound Pound attack used by Drawcia Soul and other soul bosses. Void and his duplicates share their health bar and appearance, so memorizing which one of them is the real one is neither possible nor important.
Full Smile
(internally known as Laughing Needle[from internal data])
Void splits into four. Just like before, Void and his clones share their appearance and health bar, so while it's impossible to memorize which one of them is real, memorizing the real one is not important.
Void and his clones burst into laughter and pokes needles from their body in eight directions (with a couple of them going off-screen).
The attack is used two times, once with all Voids in a row at the top of the screen, and again with all Voids at the bottom of the screen. Finally, Void and his clones fly to the background and merge again to form one being.
This resembles the Needle Form of Miracle Matter.
Sprint (2nd)
Void floods the bottom of the stage with purple water and uses Sprint again, this time ramming on his own in the same pattern as Void Termina's Final Core in Story Mode and Infernal Crisis.
As the attack ends, the water will also drain.
Dark Mind Laser[from internal data] Void transforms into a Dark Mind-like form, reprising Dark Mind's attacks from Kirby & The Amazing Mirror.
First, he attacks by moving around with two rotating mirrors surrounding him, either on ground level from one side to the other or from top to bottom in the center of the arena. Then, he goes to the central-top part of the screen, and fires a laser that reflects several times with the mirrors. Notably, only the mirrors and lasers are able to damage Kirby and his allies, as touching Void himself does not take away health when he does this attack.
Deadly Sun
Void transforms into a meteor-like form, reprising the same attack from Drawcia Soul and Soul of Sectonia.
As the "sun", he will go across the upper part of the stage, then the lower part, then diagonally in both directions, and finally from the background into the center. Every even-numbered time this attack is used, both diagonal directions are swapped out for a diagonal dive at the bottom of the stage, a burst straight up and then another diagonal dive. Many Mini Drop Stars follow Void rapidly during the move.
Loud Song
(internally known as Song Laser[from internal data])
Void transforms into the Dark Matter-like form and fires laser beams in many different positions, like Void Soul.
The lasers from this attack cannot be guarded.
Lasers will be fired in the following order for the first set:
  • 3 lasers from one side of the stage, near the top.
  • 3 lasers from the other side of the stage, near the bottom.
  • 2 lasers from the background on the top and bottom of one side of the stage, with one laser from the background in the center of the other side. These lasers are then 'swiped' across the screen to the opposite side of the stage to their starting point one at a time, with the topmost moving first.
  • 4 lasers from the background in a row at the top of the screen that 'swipe' upwards one at a time.
  • 10 lasers from the background in 3 rows; two rows of 4 at the top and bottom of the screen, with the last 2 in a center row to the left and right of Void.
Japanese attack names are taken from Japanese strategy guides. Some English attack names are taken from internal game files.

Void always starts with these attacks:

  • Pleasant Dream
  • Shooter Cutter
  • Sprint (1st)
  • Full Smile
  • Sprint (2nd)
  • Shooter Cutter
  • Dark Mind Laser (ver. 1)

Afterwards, he attacks in a fixed order on loop as follows:

  1. Deadly Sun (ver. 1)
  2. Loud Song (ver. 1)
  3. Dark Mind Laser (ver. 2)
  4. Deadly Sun (ver. 2)
  5. Loud Song (ver. 2)
  6. Dark Mind Laser (ver. 1)
  7. Loud Song (ver. 3)

Void has the fourth highest health of all single boss battles in Kirby Star Allies at 2,000, right after The Three Mage-Sisters in Heroes in Another Dimension (3,234), The Three Mage-Sisters in The Ultimate Choice's Soul Melter EX (2,425), and Morpho Knight EX in Guest Star The Three Mage-Sisters (2,070).

When defeated, unlike his weaker forms, Void starts making random faces, then finally settles on a Kirby-like smiley face, while making the same sound effect played when Kirby makes a friend. It then lets out beams of light as the screen fades to white.


  • Void's name is synonymous with "nothing". This is likely a reference to Zero, due to his resemblance to the latter.
    • It is also cognate with the Latin "vacuus", which means "Void" when it is used as a noun.
  • Void is the first example of an EX form of a Soul boss in Kirby series history, putting him in a league above the rest.
  • Unlike the other forms of Void Termina, Void has some key differences:
  • The score for defeating Void, 86,555, is a pun on "HAL GO GO GO" in Japanese. This score also appears as the highest score of the secret stage "C-R-O-W-N-E-D (Reprise)" in Dedede's Drum Dash Deluxe.
  • At random times during his battle and in his pause screen, Void makes the same face makes before it is fought.



Battle with Void Termina and Void in Kirby Star Allies (The Ultimate Choice - Soul Melter EX).
Battle with Void begins at 6:33 in the video.

Names in other languages[edit]

Language Name Meaning
Japanese 星誕せいたん ニル
Seitan Niru
Astral Birth, Nil
  • Nil means 'zero/nothingness' in English.
Traditional Chinese 星誕 虛無
xīng dàn xū wú
Astral Birth, Nil
Simplified Chinese 星诞 虚无
xīng dàn xū wú
Dutch Void -
French Void -
German Astralgenese, Void Astralgenesis, Void
Italian Nascita astrale, Void Astral birth, Void
Korean 별의 탄생 닐
Byeol-ui Tansaeng Nil
Astral Birth, Nil
Spanish Vacío Void