Professor layton.
Fire Emblem.
Advance Wars.

Best DS game so far Soma Bringer.

I would say Castlevania:OoC but it kicked my ass. If you like a challenge though you will love OoC

My favorite is Professor Layton.


And I wouldn't get too hyped up for The World Ends With You. It's a very love/hate game.

It had a, "Haha, this actually isn't over yet" ending twice.

So, yes. I returned it to the store.

And I am not the only one who did not like the game.

These are my favorite games (I posted some videos to help you):
-Ouendan (Is Elite beat agents but with japanese songs, I bought the Ouendan 1 and Ouendan 2)
http://www.youtube.com/watch?v=ooSkOlBm3ww
http://www.youtube.com/watch?v=gglK2TdoULE
http://www.youtube.com/watch?v=yU8kpJveI6A
-Luminous arc 1 and 2 (for me it is better than the Final Fantasy Tactics A2)
http://www.youtube.com/watch?v=5OYba55LeII
-Big Bang Mini (is a shooter)
http://www.youtube.com/watch?v=0VeZ_dHVWqM
-Trace memory (I love the storyline, it is a point and click, I cried in the end like I said in another thread)
-Hotel Dusk (If you want to solve puzzles and enjoy a great story with great characters, this is your game)
http://www.youtube.com/watch?v=RjovQk8TiuI
-The dark spire (is a dungeon crawler, pretty difficult and addictive, if you will buy it, you have to make a priest in the begin, you will need...........)
-Trauma center 1 and 2 (well.. I only have the first game, but soon I will buy the second game, it is a medical simulation, pretty hard, but an excelent game)
http://ds.ign.com/dor/objects/695152/caduceus/videos/trauma_center_5_090905.html
-Castlevania series
-Phoenix wright series (you have to play this game, don't try to see a video, if you like to solve crimes, you need to buy without a single question, I don't have the last game, that is "Appollo Justice", but the 3 first games are amazing)
-Grand theft auto: Chinatown wars
-Fire emblem (oh man... I bought this game after some pressions of friends, I put in the hard-brutal, THIS is an strategy game, I really love it)
-Taiko no tatsujin (Damn it, my second game broke, I don't know how, now I only have the first game)
http://www.youtube.com/watch?v=7vsgdtr3Bl0
-Chrono Trigger
-Final Fantasy III and IV
-Rhythm Heaven (actually, I don't bought this game, but a friend of mine gave to me, and I have to tell you that it is the best rhythm game, it is very very addictive, but is hard....)
http://www.youtube.com/watch?v=fUdh2jF_61A

I only have 43 games in my collection... but I will work soon =D.

@edit: I forgot about Professor Layton and TWEWY what a shame.

Pokemon Platinum i need to get more ds games

And now for something completely different: Let's Pilates...

I got over 40 hours in that "game"

Sweet. Thanks for all the recomendations guys. I knew I shouldn't have bought a DS. This is going to be a huge drain on my wallet.

Get Ninja Gaiden if you like action games. It's really good, I don't know why it isnt' very popular.

^ Oh yes, that's a great game, too! :)