Not sure if it's common knowledge but a guy called B@ndit released a modded version of DSDoom that can allows you to select WAD files rather than just play the one. He also came up with a way of modding WAD files so that you can play them on DSDoom.
If anyone knows what he did to be able to play WADs on DSDoom I would be interested in hearing.
I won't share a direct link to his post as it's full of WAREZ (The WAD files for Doom 1, Doom 2, TNT and Plutonia, I'm pretty sure I'd be scorned for sharing those).
DSDoom
http://sharebee.com/dc249955
Simpsons Doom & Super Mario Doom
http://www.zshare.net/download/62792151c09d27/
Aliens TC
http://sharebee.com/be3adb50
Blood
http://sharebee.com/0fafc19f
Fistful
http://sharebee.com/e888fced
Strain
http://sharebee.com/85c7bc36
HL Dmoonfear
http://sharebee.com/9ce471f7
Duke Nukem Mixed Version
http://sharebee.com/42bab69e
Duke Nukem
http://sharebee.com/106c8456
Half Life Edition
http://sharebee.com/a6dd58f5
Return to Castle Wolfenstein
http://sharebee.com/8d96880d
Wolfenstein 3D
Wolf 3D - Episode 1-3
Wolf 3D - Episode 4-6
Spear of Destiny
http://sharebee.com/518c19bc
Doom3
http://sharebee.com/1a446e7e
http://rapidshare.com/files/101019984/Doom3.zip.html
Installation Guide from lolmasta_again
After downloading the 2 parts, extract them into a folder inside your hard drive. You should have a folder named data.
Here is the folder’s structure:
data>Game Menu.nds
data>dsdoom
data>dsdoom>(Loads of folders, which are the wad’s names)
data>dsdoom>prboom.cfg
data>dsdoom>prboom.wad
data>dsdoom>wadsel.ini
data>dsdoom>Tranmap.dat
After making sure you have these, copy the whole data folder in the root of your flashcard.
Adding extra WADs
First, you need to have the wad…
For the example, we’ll use the file “whatever.wad”.
Go to data>dsdoom and make a new folder. Name the folder as you have named the wad (So for the example, the folder is going to be named whatever).
Inside the folder, put your wad.
Now open
data>dsdoom>wadsel.ini
with Notepad or whatever program you use for text editing.
Now, go to the bottom and add this:
[Whatever]
savpath = Whatever/
wad = Whatever/ Whatever.wad
Don’t forget to edit whatever to the name that your wad has
Make sure there’s an empty line between the wads you’ve added into the file.
And now, random analysis
[Whatever] <- Name that will show up in the wad selection menu
savpath = Whatever/ <- Folder that your saves will be saved
wad = Whatever/ Whatever.wad <- Wad path
* If you download the version above this guide (the one that says "DSdoom Emulator:You can 40 Game wads in the wadsel.ini write"), then instead of
data>Game Menu.nds
it will be
data>dsdoom>dsdoom.nds
Still releated, there is an unofficial fan forum for DsDoom that has a few WADs available.
http://dsdoommods.lefora.com/forum/
One last thing, how do I go about running the prboom server? What setting do I need on my DS and Laptop to connect and play online?