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Sonic Chronicles: The Dark Brotherhood

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Title Screen

Sonic Chronicles: The Dark Brotherhood

Also known as: Sonic Chronicles: Yami Jigen kara no Shinryakusha (JP)
Developer: BioWare
Publisher: Sega
Platform: Nintendo DS
Released in JP: August 6, 2009
Released in US: September 30, 2008
Released in EU: September 26, 2008
Released in AU: September 25, 2008

DevMessageIcon.png This game has a hidden developer message.
DevTextIcon.png This game has hidden development-related text.
MusicIcon.png This game has unused music.
TextIcon.png This game has unused text.
RegionIcon.png This game has regional differences.

PrereleaseIcon.png This game has a prerelease article

Sonic Chronicles: The Dark Brotherhood is the first and only Sonic RPG made by BioWare. It's also notable for having a...troubled development, to say the least. The final product should say lots.

To do:
More unused text, sounds, graphics and maybe some other stuff. There's also a test save file that doesn't work. Most likely due to it lacking some data (Regular save file size is 61KB, while the test save is only 21KB.)

Uncalled MIDI Instruments

To do:
Get some sort of audio recording.

Perhaps because of how horribly rushed the game's soundfonts were, most, if not all of the .SSEQ (basically .MIDI files in the DS file format) files call instruments that do not get heard because the soundbanks do not contain the respective file for those instruments. Some unheard instruments, like in Nocturne's theme, sound incomplete, likely coming from an earlier point in development.

Unused Text

To do:
Incorporate file names for dialogue chains, find ways to load in and possibly record those unused, and piece together the remaining unused strings.
Ha ha ha ha ha!
Holy Crap! I'm a disembodied voice!

Possibly a developer in-joke?

Tea Test

A test for tea? Maybe it's another test level?

Elementary, my dear Cactus.
This needs some investigation.
Discuss ideas and findings on the talk page.
Test Level
Test Area

These are the names for two test rooms that might still exist in the final game.


The purpose of this is unknown.

Unused Used
At the hands of SPOILER, no less! I can't believe SPOILER SPOILER SPOILER SPOILER SPOILER SPOILER! At the hands of Eggman, no less! I can't believe he'd turn on us like that!
My biggest concern is how SPOILER SPOILER SPOILER SPOILER. We weren't SPOILER SPOILER SPOILER! My biggest concern is how he could have built up such an army so quickly. We weren't gone very long!
I didn't SPOILER SPOILER SPOILER. It looked as if SPOILER SPOILER SPOILER! I didn't recognize the world when we got back. It looked as if we'd been gone for years!
I'm sure we'll get to the bottom of things... if we manage to survive that SPOILER! I'm sure we'll get to the bottom of things... if we manage to survive that crash!

Some lines of text from the end of the game, but with important bits strategically replaced with SPOILER. It's possible that this was used in an early review copy to prevent reviewers from spoiling key story elements.

CAPTION: Metropolis, headquarters of the evil Eggman
CAPTION: "Suddenly, at the height of their arrogance, the Nocturnus Clan mysteriously vanished."
CAPTION: Some time ago....
[Fade in on the team in Tails' Workshop.]
[Fade in to a very wide shot of the countryside near Metropolis, at nighttime, looking somewhat peaceful—the calm before the storm. 
We slowly pan right, in a long enough pan to show a caption.]
[The ship falls into Metropolis and explodes. When the ship hits the city, smaller explosions begin to spread through the city.]
[Knuckles gives a stoic and silent nod to Sonic.]
[Back to Eggman.]
[Fade out. Fade in on a rain forest-looking area.]
[At the last minute, our heroes escape, thanks to Tails' Tornado. Fade out.]
[As each character speaks, show a caption that tells us that character's name.]
[See Team Combat Tutorial]
[Fade the captions out.]
[The plane then turns and swoops off. When the place flies away, we reveal a flaming Egg Carrier in the distance over the city. 
GUN airships and fighters are pelting the carrier with gunfire.]
[Skip Instructions]
[CUTSCENE: A boat pulls up to shore on Tutorial Island. As it lands, a door opens, and Sonic and the captain walk out onto the island.]
CAPTION: "The dark sky opened and swallowed them whole. Gone were their cities, their people, their entire existence."
[Keep panning as the caption fades. A second or two later, a fighter jet flies in front of the camera, holding long enough and close enough to
show the letters "GUN" on its hull.]
[Cut to inside the carrier. A big battle is going on between Eggman and Sonic-and-friends. Eggman has more or less lost already, 
but he won't go down without a fight.]

Lots of text describing cutscenes. Some of it refers to cut content such as Tutorial Island, which might also exist in the final version.

This is a placeholder string for the inventory tutorial text.  This should be replaced with a block of text that describes what the inventory screen is used for.
Filler text filler text filler text filler text.

Obvious placeholder text.

Skip to Chapter 2
Skip to Chapter 3
Skip to Chapter 4
Skip to Chapter 5
Skip to Chapter 6
Skip to Chapter 7
Skip to Chapter 8 (Scylla)
Skip to Chapter 8 (Charyb)
Skip to Chapter 10

Lines referring to skipping to specific chapters, possibly used for a debugging feature. Note the absence of chapter 9.

Regional Differences

There were a series of five events planned for the game that one could attend to unlock one of five exclusive "Viral Chao", one for each event. Events two through five were cancelled due to lack of attendance at the first, so only one of the five Chao (Stugs) was made available to Western gamers; the other four, Pooki, Farfinkle, Fimbley, and Baki, were rendered inaccessible without hacking devices. The Japanese release of the game adds in button codes to unlock these Chao:

Pooki B, A, B, Y, B, A, B, Y
Fimbley A, A, X, B, Y, B, A, X
Baki B, A, X, Y, A, B, Y, X
Stugs X, X, Y, B, B, A, Y, X

Farfinkle is the only Chao that cannot be unlocked via button codes due to a severe glitch: it is programmed to give an enemy a random status effect when the character it is bonded to attacks, which can be "KO". If this happens, the affected enemy will try and fail to use a POW move, forcing a reset of the console.

(Source: Sonic the Hedgehog Wiki)