DSiWare (Monday) - Art Style: BOXLIFE (500 points)
Retail (Tuesday) - Classic Word Games - Dawn of Discovery - Discovery Kids: Parrot Pals - Fashion Week Junior Designer - Little League World Series 2009 - My Healthy Cooking Coach - Overlord: Minions - Shin Megami Tensei: Devil Survivor - Transformers: Revenge of the Fallen (Autobots/Decepticons)
Tetris DS went out of print and went for stupidly high prices for a while. But I thought they made a new batch not all that long ago and fixed that. At any rate, if you want Tetris DS I bet I can find one for you locally at a normal-game price.
Graphics or dated games don't really get in my way, unless we're talking 2600 or something. Hell, if I had my Apple IIC, I'd pop out Space Quest 2 right now(how many of you under 20 have played games on a green monochrome screen?).