US PS Store update, February 15 - Killzone 3, Yakuza 4, Back to the Future

Sony updated the US end of the PlayStation Store last night, with the major point being the public release of the single-player Killzone 3 demo.

The taster for the Guerrilla shooter, which was released last week for PS Plus subs, comes in two downloadable flavours: 2D and 3D.

A Yakuza 4 demo is also available to PS Plus subs. It'll go live for European subscribers later today.

The update also sees the release of the PS3 version of Telltale's Back to the Future, where players can buy the full series for $19.99. Those who do will get the first episode free.

There's also DJ Hero, Mindjack, R.U.S.E, Def Jam Rapstar and ModNation Racers DLC to boot.

A full list can be found over at the US PS Blog.