Metal Gear Solid: Rising explains Raiden on the Kojima site, but what about Big Boss? During the Sony Press Conference, Hideo Kojima took the stage to announced his newest project for the PSP Metal Gear Solid: Peace Walker.

The game is said to take place ten years after the events in Metal Gear Solid 3. Kojima emphasised that he and the MGS4 team were deeply involved in the game. Also, that it’s not a spin-off or sidestory. They also said that they’ll be using all the features of the PSP. Peace Walker is said to release in 2010.

“With Metal Gear Solid: Peace Walker, Kojima Productions has once again pushed the limits of the PSP system, creating a beautiful sequel to Metal Gear Solid 3,” said Martin Schneider, European Marketing Director for Konami Digital Entertainment GmbH. “Metal Gear Solid: Peace Walker lets players take the action and excitement of a console game to the PSP, and is a stunning addition to MGS Lore.”