Megaman Battle network 1-6
Megaman Xtreme 1-2
Secret of Mana 1
Seiken Densetsu 3(secret of mana 2)
Kirby the Amazing Mirror(With WiFi capabilities!)
I know that MMBN1 and 5 were remade on the DS which means they might do the same for the other 5(for those who may not know, there was a 4.5) Kirby the Amazing mirror really only had ONE setback. The GBA link. I never had the chance to experience the multiplayer(exluding minigames) since no one else had the game or had the guts to admit it.