Dreamcast DLCs by PkR

Credits: SonicFreak94 for the SEGA voice code, sonicblur for the tool to decrypt VMS files, Moopthehedgehog for Kadomatsu DLC, TheLegendOfXela for high quality music rips

This mod is a unified version of Dreamcast DLC mods released previously, which makes use of the latest Mod Loader functionality to make the experience as customizable as possible. You can force the mod to load a certain DLC, or make it random, or even make it load a different DLC every month! Check the mod's configuration in SADX Mod Manager for more details.

In the original game and older DLC mods certain DLCs could interfere with the flow of the story - e.g. the Christmas tree from the 1999 DLC would block the card needed to enter Speed Highway as Sonic. To avoid issues with the story, this mod does the following:

1) When playing as Sonic, one of the Christmas trees doesn't spawn if Speed Highway is not cleared
2) The Reebok DLC doesn't load if Emerald Coast isn't cleared
3) The AT&T challenge for Sonic doesn't load if Speed Highway is open but not cleared
4) The Kadomatsu DLC includes two extra decorations in the Casinopolis area that don't exist in the actual DLC

The mod brings the following Sonic Adventure downloadable events and features to the PC version:
Samba Grand Prix 
Y2K Millenium Celebration
Famitsu Hide-and-Seek challenge (translated by PkR)
QUO card challenge (translated by PkR)
Dreamcast Launch Party (all regions, English only)
AT&T challenges for Sonic, Tails and Knuckles
Reebok DMX challenge
Halloween event
Christmas 1998
Christmas 1999
New Year 1999 (Kadomatsu)
You can also force a specific character to voice all menus like on the Dreamcast

For more information about the DLCs read the following article:
http://www.moddb.com/mods/sadx-dreamcast-conversion/news/dreamcast-exclusive-dlcs-now-playable-in-sadx-pc

Changelog

1.1022 - temporary fix for a potential issue with italicized text
1.1021 - updated timer display, made it possible to cancel Reebok and AT&T challenges from the pause menu
1.1020 - italicized the non-HD timer (thanks Exant!), removed filtering hacks that are no longer necessary
1.1019 - replaced the "SEGA voice language" option with a "SEGA voice" toggle (off by default)
1.1018 - small update to hide the non-HD timer when subtitles are displayed
1.1017 - added Narrator and True Random menu voice options, replaced Kadomatsu and Christmas 98 BGMs with digital captures from a real Dreamcast (thanks Alex/TheLegendOfXela!)
1.1015 - added the recently rediscovered Kadomatsu DLC
1.1014 - added a new default challenge timer based on the debug font (like in SA1)
1.1013 - the mod now detects SADX Station Square and adjusts DLC content automatically, minor code optimizations
1.1008 - updated version number for compatibility with automatic builds
1.0008 - merged GerbilSoft's code optimizations
1.0007 - added a warning message if old individual DLC mods are detected
1.0006 - the "Disable during story" option is now on by default
1.0005 - merged the "Enable SEGA voice" and SEGA voice language settings
1.0004 - added a toggle to disable DLC content for current character if his/her story isn't complete
1.0003 - added US/International DC camera for Station Square for better compatibility with Dreamcast Conversion
1.0002 - fixed Y2K posters and default Samba GP options
1.0001 - initial release, changed the 1999 Christmas tree to spawn only if Speed Highway is cleared
1.0000 - initial beta