[neo2046]

3DS game card sizes
http://gonintendo.com/?mode=viewstory&id=169033

128MB Card
Bust-A-Move Universe (Square Enix)
Cubic Ninja (Ubisoft)
PilotWings Resort (Nintendo)

256MB Card
Dream Trigger 3D (Bandai Namco)
Green Lantern: Rise of the Manhunters (WB Games)
Rayman 3D (Ubisoft)
Steel Diver (Nintendo)
Super Monkey Ball 3D (Sega)
Tetris Axis (Nintendo)
Tom Clancy's Ghost Recon: Shadow Wars (Ubisoft)

512MB Card
Asphalt 3D (Ubisoft)
Driver Renegade 3D (Ubisoft)
LEGO Pirates of the Caribbean: The Video Game (Disney)
LEGO Star Wars III: The Clone Wars (LucasArts)
Nintendogs + Cats (Nintendo)
Pokemon Rumble Blast (Nintendo)
Super Mario 3D Land (Nintendo)
The Legend of Zelda: Ocarina of Time 3D (Nintendo)
The Sims 3 (Electronic Arts)

1GB Card
Madden NFL Football (Electronic Arts)
Mario Kart 7 (Nintendo)
Resident Evil: The Mercenaries 3D (Capcom)
Ridge Racer 3D (Bandai Namco)
Star Fox 64 3D (Nintendo)

2GB Card
Blazblue Continuum Shift II (Aksys Games)
Dead or Alive Dimensions (Koei Tecmo)
Doctor Lautrec and the Forgotten Knights (Konami)
Monster Hunter Tri G (Capcom)
Samurai Warriors Chronicles (Koei Tecmo)
Super Street Fighter IV: 3D Edition (Capcom)
Tales of the Abyss (Bandai Namco)
Thor: God of Thunder (Sega)
Tom Clancy's Splinter Cell 3D (Ubisoft)

4GB Card
Kingdom Hearts 3D: Dream Drop Distance (Square Enix)
Metal Gear Solid: Snake Eater 3D (Konami)
New Love Plus (Konami)
Resident Evil Revelations (Capcom)