DYNASTY WARRIORS®: STRIKEFORCE FREE ADD-ON CONTENT AVAILABLE TODAY

Burlingame, CA, June 2, 2009 -- KOEI, recognized worldwide as the premier brand of strategy and action games, today announced that the first set of add-on content for DYNASTY WARRIORS: Strikeforce will be available at approximately 6:00 PM PDT exclusively on PlayStation®Network.

Starting today and continuing each month KOEI will offer a new Quest Pack. Quest Pack #1 includes five new missions and challenges:

Arena Challenger - Assault Wu and gain rare materials. (Difficulty: 2)

Battle of Guan Du X - Return to Guan Du to finish the fight. (Difficulty: 5)

Multi Attack! - Use Multi Attack with your allies to take on Cao Cao. (Difficulty: 1)

Battle of Mei Castle X- Return to Mei Castle to finish the fight. (Difficulty: 5)

Ice Bi Xie Appears! - Defeat Ice Bi Xie at Hu Lao Gate. (Difficulty: 9)

For the latest updates on new add-on content, hot insider news, giveaways, and more, follow @koeicorp on twitter.

About DYNASTY WARRIORS: Strikeforce

The multi-million selling Dynasty Warriors® series has long been renowned for pitting a lone warrior against an army of thousands. The highly-anticipated action game reinvents the Dynasty Warriors brand of action into this year’s hottest multi-player experience on the PSP system.

DYNASTY WARRIORS: Strikeforce is a game unlike any other in the series. For the first time, up to four friends can join together to form a“Strikeforce.” As a team, players will travel to different towns, embark on quests, and use coordinated assaults to conquer heavily-armed fortresses and colossal beasts.

End of level bosses await intrepid heroes with a multitude of guises and deadly attacks while enemies, spread throughout each stage, possess much greater levels of intelligence and more powerful attacks. So now more than ever it’s imperative that players work together as a team and find ways to overcome the challenges and obstacles that stand between them and victory.

New“Fury” transformations give characters even greater supernatural abilities and attacks, including lightning fast speed and the ability to fly. Warriors can now take to the skies and face off against their foes in spectacular aerial combat.

DYNASTY WARRIORS: Strikeforce is developed by Omega Force and is for 1 to 4 players. Multi-player play is via ad-hoc mode only. This game is rated“T” (Teen- Violence) by the ESRB. For more information, visit www.koei.com/strikeforce.

About KOEI Corporation

Based in Burlingame, California, KOEI Corporation established operations in 1988 as the North American subsidiary of KOEI Co., Ltd. of Japan. KOEI is respected worldwide as the premier brand of strategy and simulation games, and is the innovator of the Tactical Action genre. The company's Warriors series of games have generated a combined 18 million units in global sales.

KOEI develops, publishes, and distributes interactive software for video game systems and personal computers. For fiscal 2008, KOEI posted worldwide revenues of $286 million. KOEI maintains operations in Japan, the U.S., the UK, Canada, China, Korea, Taiwan, Singapore and Lithuania. More information about KOEI and its products can be found at www.koei.com.

Dynasty Warriors and the KOEI logo are registered trademarks or trademarks of KOEI Co., Ltd.©2009 KOEI Co., Ltd. All rights reserved.“PlayStation”,“PS” Family logo and“PSP” are registered trademarks of Sony Computer Entertainment Inc. Multiplayer play supported by ad-hoc wireless only. Wireless internet connection and Memory Stick Duo™ may be required (sold separately) for certain functionality. Player is responsible for Wi-Fi and all other fees. The ratings icon is a trademark of the Entertainment Software Association. All other trademarks are properties of their respective owners.

Press Release©2009 KOEI Co., Ltd.

Contact:

Jarik R. Sikat

KOEI Corporation

(650) 692-9080 ext. 230

sikat@koei.com

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