Nintendo DS is overrated.
Almost every single "must have" for the ds is some average over hyped Japa game hyped by the interwebs that has been done better 1000 x before these game's release.
The next time an overhyped DS game comes out I'll completely ignore it because the disappointment came over way too many times:
Mega Man ZX - "OMG OMG BEST MEGAMAN EVER" and it's like barely above Mega Man X6 and X7 quality.
Hotel Dusk - "OMG OMG BEST DS ADVENTURE GAME!!" and it's completely average and feels like it was made by complete adventure gaming nubs. "BUT THE STORY IS AWESOME!!" the story is balls. The people who translated the thing are more talented than the people who wrote the game.
Contact - "OMG OMG SUDA 51!!" I like Killer 7 and all but Contact is meh. It's not that good at all, in fact, it's friggin boring.
Phoenix Wright 1 and 2 - "OMG OMG AMAZING ADVENTURE GAMES!!" I love these games myself, and even I'll admit they're average when it comes to adventure games.
New Super Mario Brso. - "OMG OMG NEW MARIO!!!" and it's completely average, and topped by the absolutely superior Kirby's Canvas Curse and Yoshi's Island 2. Funnily enough, people were saying how YI2 was going to suck and it ended up being the tits.
I could go on and on how almost every single "must have" ds title is an overated lump of fecal matter, but that would take a long ass time to do.
I played more gba games on my ds than ds games. Mega Man Zero 2

Why do people treat the DS like it's ps2 level of awesome? It's a decent machine with a lot of support, but the quality:quantity ratio is out of whack on the ds. I am going to assume this is because I'm not a portable gamer or something?