A complete list of games release on PSP listed from oldest to newest, if theres enough interest ill keep it updated, it was compilled using the sony website, last update Aug 31, 2007
Gretzky NHL
Untold Legends: Brotherhood of the Blade
Metal Gear Acid
Ape Escape: On The Loose
World Tour Soccer
Wipeout Pure
Twisted Metal: Head-On
Tony Hawk's Underground 2 Remix
Tiger Woods PGA Tour
Spider-Man 2
Ridge Racer
NFL Street 2 Unleashed
Need For Speed Underground Rivals
NBA
Lumines
Dynasty Warriors
Darkstalkers Chronicle: The Chaos Tower
Mercury
MLB
ATV Offroad Fury : Blazin' Trails
FIFA Soccer
Rengoku: Tower of Purgatory
NBA Street Showdown
Hot Shots Golf: Open Tee
Smart Bomb
MVP Baseball
Midnight Club 3: DUB Edition
Dead to Rights Reckoning
Coded Arms
Death Jr.
Namco Museum Battle Collection
Gripshift
World Series of Poker
MediEvil Resurrection
Burnout Legends
Frantix
Madden NFL 06
Tiger Woods PGA Tour 06
Frogger Helmet Chaos
NBA Live 06
NBA '06
Marvel Nemesis: Rise of the Imperfects
Virtua Tennis: World Tour
SSX on Tour
Gretzky NHL '06
FIFA 06
X-Men Legends II: Rise of Apocalypse
The Con
The Hustle: Detroit Streets
Grand Theft Auto: Liberty City Stories
Ghost in the Shell: Stand Alone Complex
Star Wars: Battlefront II
SOCOM U.S. Navy SEALs Fireteam Bravo
Lord of the Rings: Tactics
Crash Tag Team Racing
Need for Speed Most Wanted 5-1-0
The Legend of Heroes: A Tear of Vermillion
Kingdom of Paradise
Infected
Harry Potter and the Goblet of Fire
PoPoLoCrois
Tokobot
Prince of Persia Revelations
Pinball Hall of Fame
Pac-Man World 3
The Sims 2
World Championship Poker 2: Featuring Howard Lederer
WWE Smackdown vs Raw 2006
Ultimate Block Party
Midway Arcade Treasures: Extended Play
Armored Core: Formula Front
Peter Jackson's King Kong: The Official Game of the Movie
PQ: Practical Intelligence Quotient
Ape Escape Academy
Mega Man Maverick Hunter X
World Soccer Winning Eleven 9
Street Fighter Alpha 3 MAX
Exit
Fight Night Round 3
MLB '06: The Show
Y's: The Ark of Napishtim
Street Supremacy
MX vs. ATV: On the Edge
Generation of Chaos
FIFA Street 2
SpongeBob Squarepants: The Yellow Avenger
Samurai Warriors: State of War
Pursuit Force
Dragon Ball Z: Shin Budokai
Syphon Filter: Dark Mirror
Neopets Petpet Adventures The Wand of Wishing
Mega Man Powered Up
Daxter
Tom Clancy's Splinter Cell Essentials
Metal Gear Acid 2
Me and My Katamari
Kao Challengers
Go! Sudoku
Worms: Open Warfare
Viewtiful Joe: Red Hot Rumble
Capcom Classics Collection Remixed
Untold Legends: The Warrior's Code
Bust a Move: Deluxe
Cabela's Dangerous Hunts Ultimate Challenge
007: From Russia With Love
Major League Baseball 2K6
WRC: FIA World Rally Championship
World Poker Tour
OutRun 2006: Coast 2 Coast
NBA Ballers: Rebound
Field Commander
Lemmings
Puzzle Challenge: Crosswords & More!
2006 FIFA World Cup
Monster Hunter Freedom
Race Driver 2006
Gradius Collection
Cars
Astonishia Story
Metal Gear Solid: Digital Graphic Novel
The Legend of Heroes II: Prophecy of the Moonlight Witch
Tomb Raider: Legend
World Tour Soccer 06
Pirates of the Caribbean: Dead Man's Chest
Micro Machines V4
MTX Motormax
Juiced: Eliminator
Valkyrie Profile: Lenneth
NCAA Football 07
Miami Vice
Blade Dancer: Lineage of Light
Tekken: Dark Resurrection
Payout Poker and Casino
Pac-Man World Rally
Madden NFL 07
Ultimate Ghosts ‘n Goblins
Super Monkey Ball Adventure
Def Jam®: Fight for NY: The Takeover
50 Cent: Bulletproof G-Unit Edition
Rapala Trophies
World Championship Poker Featuring: Howard Lederer ALL IN
LocoRoco
Guilty Gear Judgement
NASCAR
Rengoku 2: The Stairway to H.E.A.V.E.N.
NHL 07
LEGO Star Wars II: The Original Trilogy
Bounty Hounds
Bomberman
Open Season
The Godfather: Mob Wars
World Series of Poker: Tournament of Champions
NBA Live 07
Spectral Souls
NBA 07
MotoGP
Mercury Meltdown
Gangs of London
Stacked with Daniel Negreanu
Scarface: Money, Power, Respect
Tiger Woods PGA Tour 07
GUN Showdown
Avatar: The Last Airbender
Scooby Doo! Who's Watching Who?
Family Guy
WTF: Work Time Fun
Ford Street Racing
FIFA 07
Cabela's African Safari
Medal of Honor Heroes
Ace Combat X: Skies of Deception
Snoopy vs. the Red Baron
Marvel: Ultimate Alliance
Dynasty Warriors Vol. 2
Capcom Classics Collection Reloaded
ATV Offroad Fury Pro
Rush
Dungeon Siege: Throne of Agony
Power Stone Collection
Need for Speed Carbon: Own the City
Mind Quiz
Killzone: Liberation
Grand Theft Auto: Vice City Stories
Death Jr. 2: Root of Evil
Reel Fishing: Life & Nature
Dave Mirra BMX Challenge
BattleZone
Lumines II
SOCOM U.S. Navy SEALs Fireteam Bravo 2
Every Extend Extra
Activision Hits Remixed
Yu-Gi-Oh! GX Tag Force
Xiaolin Showdown
Warhammer Warcry: Battle for Atluma
Star Trek: Tactical Assault
Pocket Racers
NFL Street 3
LUXOR: Wrath of Set
Gunpey
Gitaroo-Man Lives!
Eragon: Dragon Rider
EA Replay
Mortal Kombat: Unchained™
Sega Genesis Collection
Platypus
Tony Hawk's Project 8
Thrillville
Sonic Rivals
Over the Hedge: Hammy Goes Nuts
Justice League Heroes
Online Chess Kingdoms
Metal Gear Solid: Portable Ops
Brothers in Arms D-Day
WWE Smackdown! vs. Raw 2007
Star Wars: Lethal Alliance
Shrek Smash and Crash
Blitz: Overtime
The Sims 2: Pets
Bubble Bobble Evolution
Sid Meier's Pirates!
The Legend of Heroes III: Song of the Ocean
Winning Eleven: Pro Evolution Soccer 2007
Capcom Puzzle World
The Warriors
Gurumin: A Monstrous Adventure
Ratchet & Clank: Size Matters
Ghost Rider
Monster Kingdom: Jewel Summoner
Metal Slug Anthology
M.A.C.H. Modified Air Combat Heroes
MLB 07 The Show
Marvel Trading Card Game
Major League Baseball 2K7
Chili Con Carnage
300: March to Glory
Carol Vorderman's Sudoku
Burnout: Dominator
ProStroke Golf - World Tour 2007
Rocky Balboa
Call of Duty: Roads to Victory
UEFA Champions League 2006-2007
TMNT
Puzzle Quest: Challenge of the Warlords
Full Auto 2: Battlelines
Dragon Ball Z: Shin Budokai - Another Road
After Burner: Black Falcon
Test Drive Unlimited
Virtua Tennis 3
Prince of Persia Rival Swords
Pimp My Ride
Valhalla Knights
Pocket Pool
7 Wonders
Hard Rock Casino
The Fast and the Furious: Tokyo Drift
Aedis Eclipse: Generation of Chaos
Cube
Ultimate Board Game Collection
Winx Club: Join the Club
Heatseeker
Driver 76
Innocent Life: A Futuristic Harvest Moon
Taito Legends Power-Up
Pirates of the Caribbean: At World's End
Diner Dash: Sizzle & Serve
Brooktown High
Legend of the Dragon
Crush
Arthur and the Invisibles
Surf's Up
Shrek the Third
Tom Clancy's Rainbow Six Vegas
Hot Brain
Transformers: The Game
Puzzle Scape
PQ2: Practical Intelligence Quotient 2
Dungeon Maker: Hunting Ground
Harry Potter and the Order of the Phoenix
Traxxpad
Ratatouille
FINAL FANTASY
The BIGS
Steel Horizon
Hot Wheels Ultimate Racing
Riviera: The Promised Land
Smash Court Tennis 3
Tales of the World: Radiant Mythology
PaRappa the Rapper
FINAL FANTASY II
Harvest Moon: Boy & Girl
Brave Story: New Traveler
Crazy Taxi: Fare Wars
Tomb Raider: Anniversary
Madden NFL 08
Dungeons & Dragons Tactics
Alien Syndrome
Tom Clancy's Ghost Recon Advance Warfighter 2
Jeanne d'Arc
Dragoneer's Aria
NHRA: Countdown to the Championship 2007
Tiger Woods PGA Tour 08
Naruto: Ultimate Ninja Heroes
Monster Hunter Freedom 2
Dead Head Fred
Brunswick Pro Bowling