DS games you must have

This is not an option. You must obtain these.

Castlevania Dawn of Sorrow
The Legend of Zelda the Phantom Hourglass
Phoenix Wright: Ace Attorney
Apollo Justice: Ace Attorney
Chrono Trigger DS
Mario Kart
Metroid Prime Hunters
New Super Mario Bros
Elite Beat Agents
Jump! Ultimate Stars (Japanese, there's a patch if you ask me for it)
Custom Robo Arena
Pokemon Diamond / Pearl (I have diamond)
YuGiOh World Championship 2008
Professor Layton and the Curious Village
The World Ends With You
Final Fantasy Tactics A2
Digimon World Championship
Kirby Super Star Ultra
Bleach: Dark Souls
Castlevania: Order of Ecclesia

Other games to be enjoyed
Super Mario 64
Castlevania: Portrait of Ruin
Final Fantasy III
Final Fantasy IV
Dragon Quest Heros: Rocket Slime
Dragon Quest Monsters: Joker
Dragon Quest IV
Super Princess Peach
Dragonball Z, Supersonic Warriors 2
Pokemon Ranger
Kirby Squeak Squad
Hotel Dusk Room 215
Ace Attorney: Justice for All
Ace Attorney: Trials and Tribulations
Puzzle Quest (for pooping; you'll see when you play it)
Brain Age 2
Dementium: The Ward
Ultimate Mortal Kombat
Call of Duty 4
Contra 4
Draglade
From the Abyss
Lock's Quest
Sonic Chronicles: The Dark Brotherhood
Time Hollow
Princess Debut (You would be fucking surprised)
Dragon Ball Origins
Front Mission

I want to add to this. Also the games I'm recommending are for Gamecube, but some of them are for Nintendo 64 and they will be marked:

Some Old Games to Enjoy

Dragonball Z Budokai 2
Custom Robo
Ultimate Spiderman (Trust me, it's fucking fun)
Cel Damage (FUCKING OOOOOOLD!)
Resident Evil 4
Rayman Raving Rabbids
Super Mario Sunshine
Metroid Prime
Metroid Prime 2: Echoes
QUEST 64 (N64)
Mystical Ninja Starring Geomon(N64)
Banjo Kazooie (N64)
Banjo Tooie (N64)
Final Fantasy Crystal Chronicles
Sonic Adventure 2: Battle (Mostly for raising a Chao)

Um, this was posted for Matt who got a DS.

DICKS OF BAGS

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| IMMA FIRIN' MAH DESU!!!
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I got Metroid Prime Hunters, Custom Robo Arena, Mario Kart DS, Phoenix: Wright Ace Attorney, Castlevania: Dawn of Sorrow, Pokemon Pearl, Castlevania: Portrait of Ruin, and Final Fantasy III.

I also put Dementium the Ward and NetHack on there, but I can't get either one to work.

Also, does the M3 have a problem with randomly freezing? When I play Portrait of Ruin and I'm shopping, and I exit the shop the touch screen goes black and the top screen just displays the map and i can't get out of it.

It's actually just the Castlevania games that give you a shit time with freezing. It seems to happen differently to different people. For me it never happens.