The PlayStation Portable version of Metal Gear Solid: Peace Walker is now available for download for the Vita from PSN.

Peace Walker features the action RPG and RTS elements and memorable the artwork of Yoji Shinkawa and acclaimed comic book artist, Ashley Wood.

The game introduces new AI Weapons – giant unmanned behemoths that Snake must overcome to complete his mission – including airborne, tank, and mobile-fortress-style enemies that can each talk and sing during battle using VOCALOID technology.

An extensive multi-player allows for four-player ‘Co-operatve  Opertions’ and a three-against-three battle, wherein six players can form teams and engage in thrilling linked battles via the Vita’s Ad Hoc capabilities.