evandixon

Carnival Pokémon
The Carnival Pokémon Musical was obtainable for Black and White games by using a password (US/EU), by just accessing the Global Link (Japan BW), or by participating in the Pokémon Center Cup (Japan B2W2).
US BW Dates: 10.20.2011 - 03.01.2012
EU BW Dates: 12.07.2011 - 02.29.2012

メロメロ★ムンナ
The Charming Munna Musical was obtainable for Black, White, Black 2, and White 2 games at any time.

This tournament is based off of the Japan players from each of the three divisions that represented Japan at the 2012 VGC World Championships.
Battle Style Double Amount of Pokémon 4 Level Set to 50 Restrictions • Usual banned Pokémon
• Soul Dew Banned
• No duplicate Pokémon or Hold Items Anytime Battle Master Representative Furyu (ふうりゅう)   Semifinalist Battle Senior Representative Hiromi (ひろみ)   Anytime Battle Junior Representative Ichiichi (いちいち)   Language Tournament Title Start Date Japanese ２０１２にほんだいひょうにちょうせん 06.23.2012

This tournament features Lance and various Gym Leaders with different teams from those used in their usual PWT battles.
Battle Style Single Amount of Pokémon 3 Level Set to 50 Restrictions • Usual banned Pokémon
• Soul Dew Banned
• No duplicate Pokémon or Hold Items Finalist Battle Pokémon Trainer Lance   Anytime Battle Pokémon Trainer Morty   Anytime Battle Pokémon Trainer Erika   Anytime Battle Pokémon Trainer Whitney   Language Tournament Title Start Date Japanese チャンピオン　ワタルにちょうせん！ 07.14.2012 Korean 챔피언 목호에게 도전하자! 11.29.2012

This tournament features various Gym Leaders with different teams from those used in their usual PWT battles. The bracket settings list all trainers as Finalist Battles, but appears to give priority to the first slot (Misty).
Battle Style Double Amount of Pokémon 4 Level Set to 50 Restrictions • Usual banned Pokémon
• Soul Dew Banned
• No duplicate Pokémon or Hold Items Finalist Battle Pokémon Trainer Misty   Anytime Battle Pokémon Trainer Jasmine   Anytime Battle Pokémon Trainer Norman   Anytime Battle Pokémon Trainer Volkner   Language Tournament Title Start Date Japanese しゅうけつ！ジムリーダー！ 07.14.2012 Korean 모여라! 체육관 관장과 배틀이다! 11.29.2012

This tournament features two Veteran Trainers with the legendary trios from Kanto and Johto, plus the "psuedo-legendary" Pokémon from each region. The first battle uses filler trainer data from the ROM itself.
Battle Style Rotation Amount of Pokémon 4 Level Set to 50 Restrictions • Usual banned Pokémon
• Soul Dew Banned
• No duplicate Pokémon or Hold Items Anytime Battle Veteran Trainer En (エン)   Anytime Battle Veteran Trainer Madoka (マドカ)   Language Tournament Title Start Date Japanese でんせつの　ローテーションバトル！ 08.11.2012 Korean 전설의 로테이션배틀이다! 11.20.2012

This tournament features various Gym Leaders using legendary Pokémon that match their Gym type.
Battle Style Single Amount of Pokémon 3 Level Set to 50 Restrictions • No banned Pokémon
• Soul Dew Banned
• No duplicate Pokémon or Hold Items Anytime Battle Pokémon Trainer Sabrina   Anytime Battle Pokémon Trainer Falkner   Anytime Battle Pokémon Trainer Winona   Anytime Battle Pokémon Trainer Fantina   Language Tournament Title Start Date Japanese でんせつのポケモンどうしのたたかい 09.15.2012 Korean 전설의 포켓몬 대격돌 01.31.2013

This program will let you edit various things in the saves of Pokémon Mystery Dungeon: Red and Blue Rescue Team and Explorers of Time, Darkness, and Sky, and some parts of the ROM for Pokémon Mystery Dungeon: Explorers of Sky!
You need the .Net Framework 4.6 to the latest version.
Support Thread

Files:
0907_v3.0.5 — Windows drivers ndsplus-64-29nov2012.tar.gz — 64-bits statically compiled UPX compressed Linux build - updated to november 29, 2012 ndsplus-32-29nov2012.tar.gz — 32-bits statically compiled UPX compressed Linux build - updated to november 29, 2012 ndsplus-mac.zip — 64-bits Mac build (only libusb statically compiled) ndsplus-64.tar.gz — 64-bits statically compiled Linux build ndsplus-32.tar.gz — 32-bits statically compiled Linux build Sources:
HK EMS's Downloads Page (Windows drivers) Thulinma/ndsplus on GitHub (Linux and Mac drivers)

Ever notice how the majority of command-line applications require about a dozen commands for a single logical operation? This tool aims to fix that! Not only is there an easy-to-use GUI, ROMs can be extracted and repacked with a single console command per operation.

System requirements:
.Net Framework 4.6 Free space on the system drive. Cleanup happens as soon as possible, but especially for larger ROMs, you may need several GB free.
Supported formats for extraction:
Decrypted CCI (aka .3DS) Decrypted CXI (what Braindump gives you) Decrypted CIA NDS ROM
Supported formats for building:
Decrypted CCI (aka .3DS) For use with Citra Can be used for Gateway and Sky 3DS (with CFW) if encrypted using Decrypt9 0-Key Encrypted CCI For use with Gateway CIA For use with CFW HANS RomFS, Code.Bin, and Homebrew Launcher Shortcut NDS ROM
Planned Features:
Copy private header to 0-key encrypted CCI files as they are built. Until this is done, any *.3dz files created are invalid until a private header is added. Credits:
@SciresM for 3DS Builder (modified to use command-line arguments) profi200 for Project_CTR's makerom dnasdw for 3dstool @Asia81 for HackingToolkit3DS, which provided the usage for 3dstool.  
Support Thread & Console Usage

Normaly, distributing ROM hacks for NDS ROMs involves an XDelta patch applied to the entire ROM. 3DS hacks usually involves tedious ROM extraction and file replacement. Patches applied to the ROM as a whole do not support multiple regions of games, and tedious ROM extraction and file replacement is a chore. DS ROM Patcher aims to fix that: a single easily-distributable zip file contains everything that's needed to apply a hack to a ROM. The supported input and output formats are the same as in my .Net 3DS Toolkit: 3DS, CIA, and Hans.

Instructions for creating and applying hacks can be found at the GitHub Readme page.

Requires the .Net Framework 4.6.2.
Support Thread

This experimental console application can extract files from NDS ROMs.  The best part is that it's made with .Net Core and is by extension cross-platform (without needing any frameworks to be installed).  It currently cannot rebuild NDS ROMs, but ndstool should be able to accept the files this tool creates.
Usage (Windows):
ToolkitConsoleCore.exe <ROM> <OutputDirectory>
Usage (Linux):
ToolkitConsoleCore <ROM> <OutputDirectory>
Since I don't have a Mac, I can't say what the OSX usage is.
If anyone wants builds for other OS's, I can theoretically provide them if your OS is listed here.
Note: The file size being over 100MB is the result of 8 platform-specific builds being uploaded.  After you click Download, just choose the one you want and the it will only be 20MB max.

Author: @Grovyle91
This is a text editor for Pokémon Mystery Dungeon: Explorers of Time, Darkness, and Sky.

GameCube Rebuilder a tool for editing Nintendo GameCube images.
Main features:
extact (export) files and folders from image; replace (import) files in image; make (rebuild) a new working image from previously extracted image’s files; command line interface; wipe garbage from image; change banner information. Author: bsv798
Source

ROM Editor for Pokémon Mystery Dungeon games. Refer to the tutorial for details:
 

A work-in-progress ROM editor for PMD: RTDX that doesn't have a proper name yet. See this thread for more details: