Sonic Rush - classic, nostalgic Sonic gameplay. Pretty good.
Ontamarama - Hmm... An OK music game, but kinda hard to keep up with.
PictoImage - Charades! Not terrible if you don't hate Pictionary. You get to see pre-recorded drawings from people of all ages and you can play multiplayer (single card I think).
Air Traffic Chaos - Air traffic controlling is SO HARD. It starts off fun, but there's soo much going on at once.
TIME HOLLOW - You're a normal kid living with your parents. Oh, wait. No. You're not. You live with your uncle. Maybe. Who knows? Certainly not you. IS THAT A HOLE?! IMMA POKE IT WITH THIS PEN!
theresia - Silent Hill meets Net.Hack meets whoever designed the levels for Touch of the Dead. Genuinely scary and completely hard.
Wordmaster - This plays like a word game I would have to pay 7$ to play on my computer. It's basically one of those number-code-cracking games, but with seven letter words.
Retro Game Challenge - Go into a popular game designer's past and play made-up videogames to make him think he has a friend. Nostalgic and genuinely challenging. I'm still stuck on the second game...
Peggle Dual Shot - Why do I keep playing Peggle? And why to I have to beat the regular Peggle adventure to get the the After Dark adventure?! Haven't I beaten Peggle enough?! (The answer is yes.) The minor gameplay tweaks are kinda nice.
GTA: Chinatown Wars - Exactly what GTA should be on DS. Assisted driving to make up for the lack of joystick, re-designed wanted meter reducing system, drug mini-game, multiple new touch-based interactives, and a decent story make this a great game.
Rhythem Heaven - Ha... I don't want to hate RH, but those goddamn
English tracks are so unnecessary...