Can you recommend me NDS Games?

Well, I'd like anyone to answer what obscure games you love, for the nintendo ds, so I can play them. Please post as much games from your favourites as you can, because I've played a lot of games and I really want to play a new one. The point is please recommend me your obscure (not necessarily THAT obscure, just not too mainstream because I probably know it) favourite games. Thanks in advance