METAL GEAR® and Metal Gear Acid# are either registered trademarks or trademarks of KONAMI COMPUTER ENTERTAINMENT JAPAN, INC. © 1987 2005 KONAMI COMPUTER ENTERTAINMENT JAPAN. KONAMI® is a registered trademark of KONAMI CORPORATION. "PlayStation", "PS" Family logo and "PSP" are registered trademarks of Sony Computer Entertainment Inc. Memory Stick Duo™ may be required (sold separately). Certain limitations apply to Wi-Fi compatible connectivity. See manual for details. Player responsible for Wi-Fi compatible fees. The rating icon is a registered trademark of the Entertainment Software Association. All rights reserved.