This thread I'll dedicate to DSiWare designed to launch older DS flashcarts on the 3DS/n3DS. (and by old, I mean VERY old stuff. Stuff my TWL Slot-1 Launcher fails to work for)
This is separate from my TWL Slot-1 Launcher due to the fact that this works a bit differently and each launcher (if there are more I get working in the future) are specific to their flashcart and can't be used to launch slot-1 in general. Unlike TWL Slot-1...
R4 Stage2 TWL Flashcart Launcher(and perhaps other cards soon™)....