1. The World Ends With You

Honestly, I can't say enough good things about this game. I just got it last week, but holy shit, this game is seriously amazing in every way. The battle system is so much fun, and the fact that you can customize your pins to suit your unique style of fighting is enough to keep me grinding the hours away.

I'll admit, when I first fired this game up, I was suddenly disheartened when I thought the game was going to be timed. Since the DS system time was displayed on the screen, I thought for sure that I had 60 minutes to complete the first day. I was literally panicking going through the first few cut scenes and dialog. Oh you could only imagine my huge sigh of relief when I found out that it was timed based on real life time. But they sure had me going for a while. 

2. The Legend of Zelda: Phantom Hourglass

I originally got this game for my wife since i was sure that she would get into it. I was jealous as hell. I wanted to play this game so bad, it hurt. But I would have to wait until she beat it. Or would I?
Turns out, I wouldn't actually have to wait that long. I think after the 2nd trip to the Temple of the Ocean King, she got so frustrated with being timed, that she gave up. I told her to keep at it, that it would get better. Not having played it myself, I really was just hoping that was a true statement. But alas, she talked to her sister and her mother who had both played it, and they told her you went back over and over and it got harder and harder.
That was the end of my wife's relationship with Phantom Hourglass.

I started playing the next day, and I didn't touch another game until I beat it. It was such an amazing experience after having played Wind Waker years ago, and finally getting to jump back into the water world I missed so dearly. Unlike a lot of other people that had issues with Wind Waker's boating aspect, I freaking fell in love with it in the Wind Waker, and the fact that I would get to do it again was exhilarating, to say the least. Needless to say, I spent a majority of my time in Phantom Hourglass fishing and treasure hunting.

3. Big Bang Mini 

Best $20 I ever spent. Period.