According to development sources who wish to remain anonymous, Nintendo DS software can access the Game Boy Advance cartridge slot. However, our sources indicate that this feature seems intended mainly for hardware purposes, not for running a DS game ...
Super Thunder Blade and ESWAT: City Under Siege are the other two, they're just really…
Star Overdrive, Promise Mascot Agency, Pocket Bravery, Snow Bros. 2 Special and more.
At least ones from Nintendo.