Sony showcased a handful of games alongside the reveal of the new PSP, including new titles Little Deviants, Reality Fighters and Gravity Daze, plus games based on the following PlayStation franchises.

• Uncharted
• Killzone
• WipeOut
• Resistance
• LittleBigPlanet
• Hustle Kings
• Hot Shots Golf

Sony says the new PlayStation Portable will also play PSone games supported via its PlayStation Suite platform and will be backwards compatible with downloadable PSP games. To demonstrate this, Capcom's Jun Takeuchi demoed Monster Hunter Portable 3rd for the PSP on a NGP.

Third parties have shown demonstrations of Yakuza 4 and Metal Gear Solid 4 running on the system, with Activision announcing a Call of Duty for the new PSP.

Here is Sony's list of third-party publishers supporting the NGP as of July 27, 2011:

JAPAN

• ACQUIRE Corp.
• ALVION Inc.
• AQ INTERACTIVE INC.
• ARC SYSTEM WORKS Co.,Ltd.
• ARIKA CO.,LTD.
• ARTDINK CORPORATION
• ASCII MEDIA WORKS Inc.
• CAPCOM CO., LTD．
• CHUN SOFT CO., Ltd
• Codemasters Software Company Limited
• Crafts & Meister Co.,Ltd.
• CyberConnect2 Co.,Ltd.
• D3 PUBLISHER Inc.
• Dimps Corporation
• Edia Co., Ltd.
• ENTERBRAIN, INC.
• FromSoftware, Inc
• Gameloft K.K.
• Genki Co.,Ltd.
• Grasshopper Manufacture Inc.
• GungHo Online Entertainment,Inc
• GUST CO.,LTD.
• HAMSTER Corporation
• HUDSON SOFT CO., LTD.
• IDEA FACTORY CO., LTD.
• Index Corporation （Atlus）
• IREM SOFTWARE ENGINEERING INC.
• KADOKAWA GAMES,LTD.
• Kadokawa Shoten Publishing Co., Ltd.
• Konami Digital Entertainment Co., Ltd.
• LEVEL-5 Inc.
• Marvelous Entertainment Inc.
• media5 Corporation
• NAMCO BANDAI Games Inc.
• Nihon Falcom Corporation
• Nippon Ichi Software, Inc.
• NOWPRODUCTION, CO.,LTD
• Q Entertainment Inc.
• SEGA CORPORATION
• SNK PLAYMORE CORPORATION
• Spike Co.,Ltd
• SQUARE ENIX Co., Ltd.
• SystemSoft Alpha Corp.
• TECMO KOEI GAMES CO., LTD.
• TOMY Company,Ltd.
• TOSE CO., LTD.
• Ubisoft K.K.
• YUKE'S Co., Ltd.

48 companies in total.

NORTH AMERICA

• Activision, Inc.
• Capybara Games
• Demiurge Studios
• Epic Games Inc.
• Far Sight Studios
• Frima
• High Voltage Software
• Kung Fu Factory
• Paramount Digital Entertainment
• PopCap Games
• Powerhead Games
• Trendy Entertainment
• Ubisoft
• Warner Bros. Interactive Entertainment
• 2K Games
• 2K Sports

16 companies in total.

EUROPE/PAL

• Avalanche Studios
• Climax Studios Ltd
• Codemasters Software Company Ltd
• Eurocom Developments Ltd
• Eutechnyx Ltd
• Exient Ltd
• Firemint PTY Ltd
• Gameloft SA
• Gusto Games Ltd
• Home Entertainment Suppliers PTY Ltd
• Impromptu Software Ltd
• Rebellion
• Rockstar Games
• Sidhe Interactive
• Sumo Digital Ltd
• Team 17 Software Ltd
• Ubisoft Entertainment SA
• Zen Studios Ltd

 18 companies in total