This is a list of all wifi games, local and online. If I missed any games or screwed up feel free to notify me.

ONLINE

Animal Crossing: Wild World
Atama wo Kitaete Asobu Taisen Yajirushi Puzzle: Puppynu Vector One
Atsumare! Power Pro Kun no DS Koushien
Bleach: The Blade of Fate
Bleach DS 2nd: Kokui Hirameku Requiem
Bomberman Land Touch!
Bomberman Story DS
Castlevania: Portrait of Ruin
Chesnut Chesnut DS help Island
Clubhouse Games (42 All-Time Classics)
Common Sense Training
Contact
Cookie & Cream
Custom Beat Battle: Draglade
Custom Robo Arena
Diddy Kong Racing DS
Digimon World: Dawn and Dusk
Digimon World DS
Dragon Sakura DS
Dragon Quest Monsters: Joker
Doraemon: Nobita no Shin Makai Daibouken DS
Ecolis
FIFA 08
Final Fantasy Crystal Chronicles: Ring of Fates
Final Fantasy Fables: Chocobo Tales
Final Fantasy III
Fullmetal Alchemist Trading Card Game
Heroes of Mana
Itadaki Street DS
Jet Impulse
Jump Ultimate Stars
Kenkou Ouen Recipe 1000: DS Kondate Zenshuu
Konductra
The Legend of Zelda: Phantom Hourglass
LostMagic
Luminous Arc
Madden NFL 08
Mahjong Battle Club DS Wi-Fi
Mario Kart DS
Mario vs. Donkey Kong 2: March of the Minis
Marvel Trading Card Game
Mega Man Star Force
Metroid Prime Hunters
Monster Rancher DS
Mysterious Dungeon: Shiren the Wanderer DS
Naruto RPG 3: Reijuu vs. Konoha Shoutai
Nintendo DS Browser
Open Season
Pogo Island
Picross DS
Planet Puzzle League
Pokémon Diamond and Pearl
Pokémon Mystery Dungeon 2: Time and Darkness Exploration Team
Professor Layton and the Curious Village
Puyo Puyo 15th Anniversary
Race Driver: Create and Race
River King: Wonderland
Rune Factory: A Fantasy Harvest Moon
Sangokushi Taisen DS
Sonic Rush Adventure
Spectrobes
Surf's Up
Star Fox Command
Tank Beat
Tenchu: Dark Secret
Tetris DS
Tony Hawk's American Sk8land
Tony Hawk's Downhill Jam
TouchMaster DS
Touch Panic
Transformers: Autobots/Decepticons
Wi-Fi corresponding careful selection table game DS
Wi-Fi Morita Shogi DS
World Soccer Winning Eleven Series/Pro Evolution
Worms: Open Warfare 2
Yakuman DS
Yu-Gi-Oh! GX: Spirit Caller
Yu-Gi-Oh! World Championship 2007

SINGLE-PAK

Advance Wars Dual Strike
Animal Crossing: Wild World
Bleach: The Blade of Fate
Bleach II Kokui Hirameku Requiem
Bratz: Forever Diamondz
Break'em All
Bust-a-Move DS
Cartoon Network Racing
Children of Mana
Club House Games
Cookie and Cream
Crash Boom Bang!
Custom Robo Arena
Diddy Kong Racing
DK Jungle Climber
Dragon Quest Heroes - Rocket Slime
Dragon Ball Z - Harukanaru Densetsu
Elite Beat Agents
FIFA 06
FIFA 08
Freedom Wings
Frogger: Helmet Chaos
Goldeneye: Rogue Agent
Jump Ultimate Stars
Kirby Squeak Squad
Konami Classics Series Arcade Hits
Legend of Zelda Phantom Hourglass
Lego Star Wars II - The Original Trilogy
Lunar Knights
Mario Hoops 3 on 3
Mario Kart DS
Madden NFL 08
Magnetica
Meteos
Metroid Prime Hunters
Metroid Prime Pinball
Nanostray
Need for Speed: Carbon
Nervous Brickdown
New Super Mario Bors.
Over the Hedge
Picross DS
Point Blank
Pokémon Trozei
Puyo Pop Fever
Race Driver: Create & Race
Ridge Racer DS
Rub Rabbits!, The
SBK: Snowboard Kids DS
Scrabble Interactive 2007 Edition
Solitaire Overload
Sonic Rush
Sonic Rush Adventure
Sudoku Mania
Super Black Bass Fishing
Super Monkey Ball: Touch & Roll
Star Fox Command
Super Mario 64
Super Monkey Ball Touch and Roll
Tetris DS
Tiger Woods PGA Tour '08
Tiger Woods PGA Tour Golf 2005
Tingle's Balloon Fight
Toon-Doku
Totally Spies! 2 Undercover
World Championship Poker: Deluxe Series
Worms Open Warfare
Yoshi Touch & Go
Zekkyo Senshi Sakebrain
Zoo Keeper

MULTI-PAK

2006 FIFA World Cup
Age of Empires: The Age of Kings
Arthur & The Invisibles
Asphalt Urban GT
Asphalt Urban GT 2
ATV: Quad Frenzy
ATV: Thunder Ridge Riders/Monster Trucks Mayhem
Backyard Basketball 2007
Balls of Fury
Battles of Prince of Persia
Battleship/Connect Four/Sorry/Trouble
Big Mutha Truckers
Bionicle Heroes
Blades of Thunder 2
Bleach: The Blade of Fate
Bratz: Forever Diamondz
Break'em All
Bubble Bobble Revolution
Burnout Legends
Bust-a-Move DS
Cartoon Network Racing
Castlevania: Dawn of Sorrow
Castlevania: Portrait of Ruin
Catz
Charlotte's Web
Cheetah Girls, The: Pop Star Sensations
Children of Mana
Chronicles of Narnia, The: The Lion, The Witch and The Wardrobe
Contact
Crash Boom Bang!
Custom Robo Arena
Danny Phantom: Urban Jungle
Diddy Kong Racing DS
Dig Dug Digging Strike
Digimon World Dawn
Dino Master: Dig, Discover, Duel
Disney's American Dragon: Jake Long Attack of the Dark Dragon
Disney's Chicken Little: Ace in Action
Disney's Kim Possible: Global Gemini
Disney's Little Mermaid, The: Ariel's Undersea Adventure
Disney's That's So Raven: Psychic on the Scene
Disney/Pixar Cars
Disney/Pixar's The Incredibles: Rise of the Underminer
Dogz
Dragon Ball Z: Supersonic Warriors 2
Dragon Quest Heroes: Rocket Slime
Drawn to Life
FIFA 06
FIFA 08
FIFA Soccer 07
FIFA Street 2
Flipper Critters
Ford Racing 3
Fossil League D.T.C.
Franklin's Great Adventures
Freedom Wings
Frogger: Helmet Chaos
Glory Days 2
GoldenEye: Rogue Agent
Golden Nugget Casino
Greg Hastings' Tournament Paintball Max'd
Guilty Gear Dust Strikers
Gunpey
Hamsterz Life
Hannah Montana
Happy Feet
Hardcore Pool
Harry Potter and the Goblet of Fire
Heroes of Mana
Hi Hi Puffy AmiYumi: The Genie and the Amp
High School Musical: Makin' the Cut
Horsez
Imagine: Fashion Designer
Jewel Quest Expeditions
Juiced 2: Hot Import Nights
Konductra
Lara Croft Tomb Raider: Legend
LEGO Star Wars II: The Original Trilogy
LostMagic
Luminous Arc
Lunar: Dragon Song
M&M's Break 'Em
Madagascar
Madden NFL 06
Madden NFL 07
Madden NFL 08
Madden NFL 2005
Magnetica
Major League Baseball 2K7
Marvel Nemesis: Rise of the Imperfects
Marvel Trading Card Game
Mario Kart DS
Mech Assault: Phantom War
Mega Man Battle Network 5: Double Team
Mega Man Star Force: Dragon/Pegasus/Leo
Meteos: Disney Magic
Metroid Prime Hunters
Micro Machines V4
Mini RC Rally
Mr. DRILLER: Drill Spirits
MySims
Need for Speed: Carbon
Need for Speed Underground 2
Need For Speed: Most Wanted
Pirates of the Caribbean: Dead Man's Chest
Planet Puzzle League
Pogo Island
Pokémon Trozei
Puyo Pop Fever
Race Driver: Create & Race
Rainbow Islands Revolution
Real-Time Conflict: Shogun Empires
Resident Evil: Deadly Silence
Retro Atari Classics
Ridge Racer DS
Rub Rabbits!, The
SBK: Snowboard Kids DS
Shrek SuperSlam
Shrek the Third
SimCity DS
Sims 2, The
Snood 2: On Vacation
Spider-Man: Friend or Foe
SpongeBob's Atlantis SquarePantis
Star Trek: Tactical Assault
Star Wars Episode III: Revenge of the Sith
Strawberry Shortcake: Strawberryland Games
Suite Life of Zack & Cody, The: Tipton Trouble
Super Monkey Ball: Touch & Roll
Tak 3: The Great Juju Challenge
Tao's Adventure: Curse of the Demon Seal
Teenage Mutant Ninja Turtles 3: Mutant Nightmare
Tetris DS
Texas Hold 'Em Poker
Texas Hold 'Em Poker Pack
Theme Park
Tiger Woods PGA Tour '08
Tiger Woods PGA Tour Golf 2005
TMNT
Tom Clancy's Splinter Cell: Chaos Theory
Tony Hawk's American Sk8land
Tony Hawk's Downhill Jam
Top Spin 2
Touchmaster
Turn It Around
Ultimate Spider-Man
Wiffle Ball
Winx Club: Quest for the Codex
Yu-Gi-Oh!: Nightmare Troubadour
Yu-Gi-Oh! World Championship 2007