Black Chest Demon

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The title of this article is conjectural; an official name for the article's subject has not been found, so it has been given a fitting title by the editors. If an official name is found, it is requested that the article should be moved to the correct name.

Black Chest Demon, Paper Mario: The Thousand-Year Door
Black Chest Demon
Black Chest Demon
A Black Chest Demon
First appearance Paper Mario: The Thousand-Year Door (2004)

The Black Chest Demons are four entities Mario encounters during the events of Paper Mario: The Thousand-Year Door. The demons are legendary heroes of Rogueport's past history who are cursed by the Shadow Queen and locked in four black chests. They set "curses" on those who open their chests; however, the curses are actually beneficial to Mario, giving him new paper abilities. As such, they are quite similar to the Mad Batter from The Legend of Zelda series.


Grifty tells the story of their adventure and how they came to be trapped in chests.

A strong Toad from Petal Meadows, a wise Goomba from Boggly Woods, a scar covered, world traveling Koopa, and a cold Boo were the four heroes. They learned of the evil Shadow Queen and teamed up to defeat her. In the great battle, they managed to seal the demon, but just before the fight was completed, she cursed them. If they ever let go of the Crystal Stars, a black chest would appear and lock them away for all eternity.

The heroes knew the seal on the Shadow Queen was only temporary, and they wanted the stars available to one who might need them. They made a Magical Map to the stars, and to stop evil from using it, they put it in a box that could only be opened by the pure of heart. The merchant in the opening scene of the game has the box and gives it to Princess Peach.

The Toad was exhausted from his journey and collapsed in Petal Meadows. A healer saved him, but knowing his fate, the Toad gave them his Crystal Star and asked them to hide it where nobody would find it. His box is in Hooktail Castle. The Goomba knew the Punies were being terrorized by the nearby monsters, so she hollowed out the Great Tree. She gave the Emerald Star to the Punies where they have been keeping it safe for the past thousand years. Her chest is in Rogueport Sewers. The Koopa went to hide the Sapphire Star in Keelhaul Key, but Cortez came and easily took it for himself. The Koopa was so tired he did not stand a chance. His chest is in the Pirate's Grotto. The Boo hid the Ruby Star in Creepy Steeple, and her box is in a shop's storage room in Twilight Town.

One by one, Mario finds the chests and opens them with the keys, releasing them and letting them "curse" Mario with new powers. While the others appear to be taunting Mario, the Koopa one at least did not appear evil, as he is rehearsing the speech. After they "curse" Mario, they vanish and are neither seen nor mentioned again.

Paper Abilities[edit]

Plane Mode[edit]

Main article: Plane Mode
The panel for activating Plane Mode
  • Chapter Obtained: Prologue (A Rogue's Welcome)
  • Power obtained in: Rogueport Sewers
  • To obtain power: In Rogueport Sewers, the player must find a room where the first thing that can be seen is a huge yellow block and a barred entrance to another room. To the right of the room is a blue switch; when the player hits it, a set of stairs is revealed. Ascending the stairs, the player should see a doorway and a paper airplane platform. The player must now drop off the side of the platform to grab the black key, and then jump back up the stairs and enter the doorway to receive the first curse.
  • To use power: The player must stand on a plane panel (also known as an airplane panel) and press Y Button. The player then has to press B Button or land to return to normal.
  • Demon: the Goomba heroine.

Paper Mode[edit]

Main article: Paper Mode
  • Chapter Obtained: 1 (Castle and Dragon)
  • Power obtained in: Hooktail Castle
  • To obtain power: For this power, the player must continue past the room with the black chest. There is a door that leads to a room where the black key is. The floor appears to have spikes in it, but they will not pop up until the player grabs the key. The player then has 50 seconds to navigate their way back out of the spike maze before they get crushed, triggering an instant Game Over. The player then opens the chest and is cursed again.
  • To use power: The player must press and hold R Button.
  • Demon: the Toad hero.

Tube Mode[edit]

Main article: Tube Mode
Mario in Tube Mode
  • Chapter Obtained: 4 (For Pigs the Bell Tolls)
  • Power obtained in: Twilight Town
  • To obtain power: The black key is in a shack just outside Twilight Town in Twilight Trail. Before the player can gain this power, they first need the Shop Key to open the storeroom. A fallen tree blocks the path at the end of Twilight Trail. The player has to use Koops to grab the Shop Key on the other side. The player can now open the storeroom to open the chest and be cursed.
  • To use power: The player has to press R Button and rotate Control Stick. They can also press B Button to return to normal.
  • Demon: the Boo heroine.

Boat Mode[edit]

Main article: Boat Mode
A panel used for the boat ability
  • Chapter Obtained: 5 (The Key to Pirates)
  • Power obtained in: Pirate's Grotto
  • To obtain power: In the Pirate's Grotto, the player should see a blown open boat. The player must enter the boat, where they see the evil black chest, waiting to curse them. They must speak to the chest, then fight the Ember that emerges. Upon defeating the ember, a black key drops, which the player can use to open the chest and receive the fourth and final curse.
  • To use power: The player must stand on a boat panel and press Y Button, then press Y Button again when they reach another boat panel.
  • Demon: the Koopa hero.


Names in other languages[edit]

Language Name Meaning
Japanese ゴロツキタウンの四千年英雄
Gorotsukitaun no Yon Sennen Eiyū
Rogueport's Millenary Four Heroes
Portuguese Os Quatro Heróis Milenarios do Rogueport
Spanish Los Cuatro Héroes Milenarios de Villa Viciosa Vicious Village's Millenary Four Heroes


  • Though the Black Chest Demons are separate characters, the second says that the player fell for their trick a second time, meaning the second one knew of Mario's encounter with the first Black Chest Demon.
  • In the section on finding hidden Star Piece panels in game's instruction booklet, the picture depicts Mario Spin Jumping with Koops in front of the Rogueport Sewers black chest which appears closed. This is a continuity error, as Mario does not acquire Koops as a partner nor the Ground Pound ability until some time after he opens that chest.
  • The Twilight Town Black Chest Demon initially talks using female mannerisms in the Japanese version until the chest is opened; because such gendered speech is difficult to express in English, the English version only vaguely suggests it with a heart at the end of the Black Chest Demon's request. This serves to contextualize why the Black Chest Demon later asks, "Did you think a lovely lady would pop out or something?"
  • It is likely that the Crystal Star that was hidden by the Toad was the Garnet Star, since the healer he entrusted it to is referred to as a priest in some localizations, with the sanctum-keeper of Poshley Sanctum being similarly referred to as a high priest.