[Shadow Link]

This isn't something that I need right away, but it has been on my mind for a while. There are some NDS games that have special features unlocked when a certain GBA game is in the DS' other cartridge slot; Megaman 5 Double Team and Lunar Knights, for example. Does no$GBA have this functionality yet, or any DS emulators for that matter? If so, how do you get it to work?

 

[imlost]

I wouldn't call this feature "nds to gba game linking" since you don't actually link the two games, but w/e.

As for what emulator that has this feature, you can try using DeSmuME.

 

[Lex_Light]

Yes, try Desmume if you have a powerful computer.

 

[SCHUMI_4EVER]

This isn't something that I need right away, but it has been on my mind for a while. There are some NDS games that have special features unlocked when a certain GBA game is in the DS' other cartridge slot; Megaman 5 Double Team and Lunar Knights, for example. Does no$GBA have this functionality yet, or any DS emulators for that matter? If so, how do you get it to work?

As far as your question regarding no$gba goes there's a reason why the stickied FAQ was created and has [READ!] next to it.