Listing them buy size. (Largest to smallest.)

FIGHTING:

Dissidia - Final Fantasy - 1.38GB
Tekken - Dark Ressurrection - 1.26GB
Dragon Ball Z - Tenkaichi Tag Team - 1.17GB
The King of Fighters the Orochi Saga - 1.05GB
BlazBlue - Calamity Trigger - 920MB
Tekken 6 - 723MB
Guilty Gear XX Accent Core Plus - 620MB
Darkstalkers Chronicle - The Chaos Tower - 540MB
Guilty Gear - Judgement - 490MB
Soul Calibur - Broken Destiny - 355MB
Spectral vs. Generation - 123MB
Street Fighter Alpha 3 MAX - 100MB

MISC 1:

The Warriors - 1.61GB
SOCOM U.S. Navy SEALs Fireteam Bravo 3 - 1.59GB
Major League Baseball 2k10 - 1.51GB
Manhunt 2 Uncensored - 1.02GB
Obscure The Aftermath 2 - 965MB
FIFA 10 - 906MB
Megamind - 886MB
Army of Two - The 40th Day - 768MB
The Secret Saturdays Beast of the 5th Sun - 718MB
Tiger Woods PGA Tour 08 - 683MB 
Madden 09 - 656MB
Ridge Racer - 612MB
Disgaea 2 Dark Hero Days - 564MB
Armored Core Silent Line - 370MB
Moto GP - 302MB
Undead Knights - 276MB
Superbike 2008 - 274MB
Dirt 2 - 252MB
NFL Street 3 - 236MB
Echoshift - 194MB
State Shift - 109MB
Freekscape Scape From Hell - 104MB

MISC 2:

SNK Arcade Classics Vol 1 - 973MB
Obscure - The Aftermath - 829MB
Silent Hill - Shattered Memories - 765MB
Sega Genesis Collection - 763MB
Silent Hill Origins - 723MB
Grand Theft Auto Liberty City Stories - 575MB
Grand Theft Auto China Town Wars - 543MB
Me & My Katamari - 307MB
Infected - 227MB
Worms - Open Warfare 2 - 167MB
Petz Dogz Family - 56MB

PLATFORMERS:

Dante's Inferno - 1.45GB
Little Big Planet - 1.32GB
God Of War - Ghost of Sparta - 1.31GB
God Of War - Chains of Olympus - 1.29GB
Daxter - 1.21GB
Star Wars Battlefront - Elite Squadron - 1.08GB
Jak and Daxter - The Lost Frontier - 1.01GB
Ratchet & Clank - Size Matters -  862MB
LEGO Star Wars II - The Original Trilogy - 857MB
Castlevania - The Dracula X Chronicles - 783MB
Pac-Man World 3 - 780MB
Metal Slug Anthology - 739MB
LEGO Indiana Jones - The Original Adventures - 726MB
LEGO Batman - 662MB
Tenchu - Shadow Assassins - 588MB
LEGO Indiana Jones II - The Adventure Continues - 549MB
Death Jr. 2 - Root of Evil - 537MB
Assassins Creed - Bloodlines - 527MB
Asterix and Obelix XXL 2 - Mission Wifix - 420MB
Kenka Bancho - Badass Rumble - 413MB
Mega Man - Maverick Hunter X - 412MB
Indiana Jones and the Staff of Kings - 405MB
Kao Challengers - 379MB
Ape Escape - On the Loose - 372MB
Patapon 2 - 365MB
Ultimate Ghost 'n Goblins - 320MB
Prinny - Can I Really Be the Hero - 295MB
Mega Man Powered Up - 273MB
Death Jr. - 251MB
Tokobot - 217MB
Patapon - 216MB
Metal Slug XX - 212MB
Frogger - Helmet Chaos - 164MB
Monster (Probably) Stole My Princess - 102MB
Adventures to Go! - 64MB

PUZZLE GAMES:

DJ Max Portable 3 - 1.59GB
Lumines II - 1.01GB
Gitaroo Man Lives! - 934MB
Beaterator - 713MB
LocoRoco - 632MB
WTF - Work Time Fun - 381MB
PaRappa the Rapper - 336MB
Capcom Puzzle World - 286MB
Beats - 241MB
Super Monkey Ball Adventures - 209MB
Puzzle Chronicles - 186MB
Lemmings - 173MB
Ape Escape - Academy - 160MB
Fat Princess - Fistful of Cake - 158MB
Downstream Panic! - 153MB
What Did I Do To Deserve This My Lord! - 111MB
PixelJunk Monsters Deluxe - 73MB
Echochrome - 71MB
Break Quest - 65MB
Puzzle Quest - Challenge of the Warlords - 63MB
Space Invaders Extreme - 63MB
Hello Kitty - Puzzle Party - 61MB
Bomberman - 59MB
Chameleon - 52MB
Holy Invasion Of Privacy, Badman! - 37MB
Tetris Mini - 27MB
Age of Zombies - 20MB
Diner Dash - 17MB
Luxor - Pharaoh's Challenge - 16MB
Luxor - 15MB
Crystal Defenders 10MB
Yeti Sports 5MB
Digi Tiles - 3MB

RACING & FLYING:

Ace Combat X2 - Joint Assault - 1.43GB
Midnight Club 3 - DUB Edition - 1.05GB
Gran Turismo - 990MB
Ridge Racer 2 - 896MB
SSX - On Tour - 625MB
Midnight Club - LA Remix - 616MB
MotorStorm - Artic Edge - 590MB
Crash Tag Team Racing - 548MB
MX vs ATV Unleashed - On the Edge 459MB
Driver '76 - 458MB
Burnout - Dominator - 425MB
The Fast and the Furious - 395MB
Outrun 2006 - Coast 2 Coast - 381MB
Snoopy vs the Red Baron - 295MB
Ace Combat X - Skies of Deception - 291MB
Gradius Portable (J) - 285MB
Burnout - Legends - 276MB
Pac-Man World Rally - 240MB
MX vs ATV - Reflex - 234MB
Wipeout Pulse - 230MB
GTI Club Supermini Festa! - 193MB
Need for Speed Most Wanted 5-1-0 - 190MB
MX vs ATV Untamed - 187MB
Wipeout Pure - 159MB
Car Jack Streets - 85MB
Gripshift - 84MB

SPORTS:

Hot Shots Tennis - Get A Grip - 1.13GB
2010 FIFA World Cup - South Africa - 1.12GB
Hot Shots Golf - Open Tee 2 - 780MB
PANGYA - Fantasy Golf - 752MB
Dead or Alive - Paradise - 579MB
Hot Shots Golf - Open Tee - 420MB
Taito Legends - Power-Ups - 243MB
Activision Hits Remixed - 200MB
Online Chess Kingdoms - 170MB
Cake Mania - Bakers Challenge - 154MB
Brunswick Bowling - 102MB
Monopoly - 61MB
Ultimate Board Game Collection - 48MB
Scrabble - 43MB
UNO - 32MB
Talkman Travel Tokyo - 19MB
Reef Aquarium - 9MB
Sheep Defense - 6MB