Well apparently I've missed a pretty important emulator for the DS, Nitrografx, which appears to be a port of an old gameboy color emulator that emulates the turbo grafx 16 system. The latest update (v0.6?) is suppose to make every hu-card playable as well as adds support for CD and Arcade card games.
This is the perfect time to dust off your DS, put the emulator in your R4DS and play some bonk, zonk, neutopia, legendary axe, alien crush, splatterhouse, keith courage, magical chase, military madness, or the countless other 'goodies' and have a nostalgia fest!
Niteografx in action