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.
Well, those "mirror matches" were just clips of the game before the "same wrestler cannot be picked twice" mechanism was put in by the developers, it was just done for some humor in the credits sequence as far as I know.