What is the best Wi-Fi DS game?

What is the best DS game that uses Wi-Fi? I have wireless internet but the only game I've played on wifi is Mario Kart, which was fun for about half an hour.
So come on, give me some good games!

 

Worms 2
No hackers
Pure epicness

Better with PSP IMO but if you cant obtain that DS is just fine.

 

Judging by your avatar you are a worms fan?
I used to be OBSESSED with Worms 3D on the PS2!
I'll check out the ds one, thanks!

 

But its 2D! Better imo but I just had to say
And try second one.
And yes I am a Worms fan.
Have fun!

 

Animal Crossing: Wild World
- You get in a town, and it's virtually yours. You do what you do with it. It's a long-winded fun. And you can go to other people's towns and let them come to you via Wi-Fi.
Though one downside of this is the SEEDERS - they wreck your game, so constant file backing up or Action Replay repair codes may be necessary. FCs are required to play via Wi-Fi.

Yu-Gi-Oh Games
- It's a card game. Think of strategies from over thousands of cards. Wi-Fi play allows you to connect and duel with other players randomly.

Bleach: The Blade of Fate or Bleach: Dark Souls
- Deepest fighting game on the DS. Both games allow you to fight with random players via Wi-Fi.

Advance Wars: Days of Ruin
- Turn-based Strategy war game, where your chess pieces are tanks. Random play is also present via Wi-Fi, though the random map may screw one player's side.

Metroid Prime: Hunters
- First-person shooter. Its focus is multiplayer so you can bet it's good.

These are the games that I've played that were worth my free time. I'm glad there was plenty of it.

Check this list for Wi-Fi compatible games.
http://en.wikipedia.org/wiki/List_of_Nintendo_DS_Wi-Fi_Connection_games

 

What do you mean SEEDERS?

 

Seeders in Animal Crossing WW use Action Replay to wreck other player's game. Like a seeder can drop 'rock' seeds (an item only obtainable with AR) to block your house. When that happens, everytime you try to load the game, it just freezes. That's only one example.

 

oh man!! i LOVE that game!!!
I OWN ALL AND I STILL PLAY IT!
(just that lots of them online suck)
Post Merge: [time]1254663006[/time]
dont forget bomberman if u like a challenge of an old game ( the bomberman 2 version E)

 

Ok giving me a Wikipedia list is fine and dandy, but I'd prefer if you gave me screens and stuff.
Plus I am a seeder (part time ) and I wreck games of people I hate.

 

I would recommend Custom Robo Arena but like all wi-fi games it is full of quitters and hackers,still kinda fun tough.And of course Final Fantasy Crystal Chronicles: Echoes of Time that is if you don't mind the lag...