Whew... That's gonna be quite a list.

Final Fantasy III

Resident Evil

Both Castlevanias

NSMB

Mario 64

Both Phoenix Wrights

Hotel Dusk

Tetris

Yoshi's Island

Mario Kart

Kirby: Canvas Curse

EBA

Meteos

Mario & Luigi

Dragon Quest Heroes: Rocket Slime

Ummm.... Can't really think of any others off the top of my head, but that's definitely a start right there. :P

Nice work on the list there. Might I recommend Resident Evil: Deadly Silence to be added to the list?

I'm in the same boat as most of the posters in this thread. I had Mario 64 first. That was about the only title I thought was worth a crap when the DS was first released.