Prototypes by system/PlayStation Portable

ATV Offroad Fury Pro (Sep 25, 2006 prototype)

Ace Combat X: Skies of Deception (Aug 1, 2006 prototype)

Ace Combat X: Skies of Deception (Aug 16, 2006 prototype)

Arthur and the Minimoys (Jan 17, 2007 prototype)

Battle vs. Chess (Feb 6, 2012 prototype)

Castlevania: The Dracula X Chronicles (Jan 30, 2007 prototype)

Championship Manager 2010 (Prototype)

Chili Con Carnage (Sep 23, 2006 prototype)

Crash of the Titans (Aug 26, 2007 prototype)

Crazy Taxi: Fare Wars (Jun 28, 2007 prototype)

Daxter (Feb 10, 2006 prototype)

Death Jr (Jul 22, 2005 prototype)

DiRT 2 (Aug 11, 2009 prototype)

Dissidia Final Fantasy (Jul 1, 2009 prototype)

Dragon Ball Z: Shin Budokai (Feb 14, 2006 prototype)

Eye of Judgment: Legends (Oct 22, 2009 prototype)

Field Commander (Nov 30, 2005 prototype)

Fight Night Round 3 (Dec 21, 2005 prototype - Debug)

FlatOut Head On (Dec 11, 2007 prototype)

Ford Racing: Off Road (Jan 11, 2008 prototype)

Formula One 06 (Jun 15, 2006 prototype)

Gangs of London (Jun 5, 2006 prototype)

Ghost Rider (Jan 18, 2007 prototype)

God of War: Chains of Olympus (Feb 1, 2008 prototype)

God of War: Chains of Olympus (Feb 3, 2008 prototype)

Heatseeker (Jan 15, 2007 prototype)

Isle of Minno (May 12, 2006 prototype)

Jeanne d'Arc (Aug 17, 2006 prototype)

Juiced: Eliminator (Apr 26, 2006 prototype)

Key of Heaven (Nov 18, 2005 prototype)

Killzone: Liberation (Aug 21, 2006 prototype)

Killzone: Liberation (Jul 19, 2006 prototype)

Kingdom of Paradise (Oct 10, 2005 prototype)

Lemmings (Dec 8, 2005 prototype)

Lemmings (Jan 18, 2006 prototype)

Lemmings (Sep 30, 2005 prototype)

LittleBigPlanet (Jun 29, 2009 prototype)

LocoRoco (Apr 20, 2006 prototype)

LocoRoco 2 (Sep 5, 2008 prototype)

MX vs. ATV Untamed (Nov 20, 2007 prototype)

MediEvil: Resurrection (Feb 15, 2005 prototype)

MediEvil: Resurrection (Mar 18, 2005 prototype)

Melodie (Sep 2, 2005 prototype)

Metal Gear Solid: Portable Ops (Feb 6, 2007 prototype)

Need for Speed: ProStreet (Dec 6, 2007 prototype)

PaRappa the Rapper (Apr 16, 2007 prototype)

Passport to Rome (Jun 28, 2006 prototype)

Phantasy Star Portable 2 (Aug 4, 2010 prototype)

Ratchet & Clank: Size Matters (Dec 20, 2006 prototype)

Ratchet & Clank: Size Matters (Mar 17, 2007 prototype)

Ratchet & Clank: Size Matters (Oct 11, 2006 Multiplayer Beta)

Rock Band Unplugged (Dec 10, 2008 prototype)

SOCOM: U.S. Navy SEALs - Fireteam Bravo (Aug 19, 2005 prototype)

Saints Row - Undercover (Sep 8, 2009 prototype)

Secret Agent Clank (Apr 20, 2008 prototype)

Secret Agent Clank (May 9, 2008 prototype)

Sid Meier's Pirates! (Dec 6, 2006 prototype)

Silent Hill: Origins (Aug 7, 2006 prototype)

Silent Hill: Origins (Jul 19, 2007 prototype)

Silent Hill: Origins (May 26, 2006 prototype)

Sonic Rivals 2 (Oct 30, 2007 prototype)

Sonic Rivals 2 Pre-Production (Oct 22, 2007 prototype)

Sonic Rivals 2 Test Sample (Oct 8, 2007 prototype)

Space Invaders Extreme (May 16, 2008 prototype)

Tekken: Dark Resurrection (Jun 26, 2006 prototype)

The 3rd Birthday (Jan 27, 2011 prototype)

The Elder Scrolls Travels: Oblivion (Apr 27, 2007 prototype)

The Elder Scrolls Travels: Oblivion (Feb 2, 2007 prototype)

The Elder Scrolls Travels: Oblivion (Jan 11, 2007 prototype)

The Elder Scrolls Travels: Oblivion (Jan 31, 2007 prototype)

The Elder Scrolls Travels: Oblivion (Jun 9, 2006 prototype)

The Elder Scrolls Travels: Oblivion (Nov 21, 2006 prototype)

The Eye of Judgment: Legends (Sep 28, 2009 prototype)

The History Channel: Great Battles of Rome (Mar 1, 2007 prototype)

The Lord of the Rings: Tactics (Oct 4, 2005 prototype)

The Simpsons Game (Oct 3, 2007 prototype)

The Sims 2: Castaway (Sep 7, 2007 prototype)

Tiger Woods PGA Tour 09 (Jul 15, 2008 prototype)

Tom Clancy's Splinter Cell Essentials (Jan 18, 2006 prototype)

Tony Hawk's Underground 2: Remix (Feb 17, 2005 prototype)

WRC: FIA World Rally Championship (Aug 11, 2005 prototype)

WTF: Work Time Fun (Jul 27, 2006 prototype)

Wipeout Pulse (May 4, 2007 prototype)

WipEout Pure (Dec 2, 2004 prototype)