Death Battle Fanon Wiki

Soon this kingdom will vanish along with all who dwell within. And you, too, will sleep eternally in the dark power's embrace!
~ Dark Bowser

Dark Bowser is the overarching antagonist and final boss of the video game, Mario and Luigi: Bowser's Inside Story.

Fanon Wiki Ideas So Far[]

With Fawful[]

Battle Royales[]

Battle Record[]

WARNING: The following tab will reveal the numbers of wins and losses for the following character. Read at your own risk.

Battle Record

  • Wins: 2
  • Losses: 3
  • Draws: 0

Possible Opponents[]


The origin of the Dark Star is unknown. Many years ago, the Dark Star was unearthed by Toad archaeologists. Upon being awoken, the Star went on a rampage, wreaking havoc on the entire kingdom. Before he could raze the entire kingdom, the Star Spirits worked together to seal it underground. Years later, Fawful kidnapped Princess Peach & stole the Dark Star, as the Princess was the only one who could break its seal. Upon reawakening the Dark Star, Fawful attempted to absorb its power, becoming Dark Fawful. However, Bowser stopped him from taking all the power, leaving the Star & Fawful with only half of the dark power. Feeling incomplete, the Dark Star sought out more power within Bowser's body, consuming his DNA & becoming a dark version of the Koopa King. The Mario Bros. tried to stop it, but they were unsuccessful, & the incomplete Dark Bowser suck out the rest of the dark power.

After Bowser defeated Dark Fawful, Dark Bowser found his remains & absorbed Dark Fawful. This restored the Dark Star's power & combined it with Bowser's DNA, turning it into the complete Dark Bowser. With his power restored, Dark Bowser now sought to destroy the entire kingdom, but the combined efforts of Mario, Luigi, & Bowser were enough to defeat Dark Bowser, putting an end to his destructive rampage once & for all.

Death Battle Info[]


  • Height: 8'7"
  • Weight: 800lbs
  • Gender: Unknown
  • Age: Unknown
  • Species: Star/Koopa

Powers & Abilities[]

As Dark Star[]

  • Flight
  • Poison: Can inflict the Poison effect by ramming the foe.
  • Bodily Weaponry: Covered in spikes, & will spin into foes to slash them.
  • Summoning: Can summon Dark Satellmites, which can fire lasers.
  • Electricity Manipulation: Can create explosive balls of electricity & shoot electric bolts.
  • Energy Manipulation: Can fire balls of energy, some of which can set enemies on fire. Can fire a massive laser that deals great damage over a wide area. Can also shoot a small laser while weakened.
  • Duplication: Can create 5-7 versions of itself to ram the enemy.
  • Invisibility: Can slowly turn invisible, making it hard to track its movements.
  • Darkness Manipulation: As a dark entity, the Dark Star has a few powers over darkness & shadow.
    • Can darken its surroundings, making it harder for opponents to see.
    • Can bring shadows to life, causing them to move independent of their owners.
    • By attacking a shadow, the Dark Star will actually deal damage to the owner of said shadow.
  • Light Manipulation: Heedless of its dark nature, the Dark Star can create a flash of light to expose its foes shadows.
  • Vacuum: As a last ditch attack, the Dark Star can spin at high speed in an attempt to suck up foes & deal massive damage.
  • DNA Absorption: If the Dark Star enters the opponent's body, it can consume their DNA, adopting their traits & abilities.
  • Transformation: Can disperse its body into particles, allowing it to enter small spaces.
  • Portal Creation: Dark Fawful was able to create portals that he fired attacks through to confuse foes. As the source of his power, the Dark Star should also have this ability.
  • Smoke Manipulation: Can create fumes that are hard to breathe.
  • Cold Resistance: Is fine being in Bowser's body when temperatures are low enough to flash freeze water [0C].

As Dark Bowser[]

  • Largely the same as the Dark Star.
  • Fire Breath: Much like the one he copied, Dark Bowser can breathe a torrent of powerful flames.
  • Weather Manipulation: Created a storm over the entire Mushroom Kingdom.
  • Earth Manipulation: Can summon a boulder to throw at enemies.
  • Sealing: Can trap enemies in bubbles & cages.
  • Summoning: Can summon dark versions of Bowser's minions.
  • Resurrection: Within Dark Bowser lies the Dark Star Core. If Dark Bowser is ever defeated, the Core will resurrect him. Dark Bowser cannot be defeated unless its Core is destroyed.
  • Heat Resistance: Was okay after being set completely on fire.


  • Fought the Mario Bros. with half its power, & was largely unharmed by their attacks.
  • Dark Fawful, who had half of the Dark Star's full power, fought Bowser.
  • Its power was considered a threat to the kingdom, & Dark Bowser claimed the kingdom would vanish.
  • Created a country-wide storm.
  • It's energy created walls so powerful that Mario & Luigi couldn't get through them without the Miracle Cure.


  • Defeating the Dark Star's Dark Satellmites will weaken them. The Dark Star will then send them to explode on the enemy with a ball of electricity. Reflecting the Satellmite back at the Dark Star can bypass it's nigh-invulnerability & weaken it.
  • Destroying the Dark Star Core will leave Dark Bowser massively weakened & helpless to defend himself, leaving him to be easily defeated.