For Japanese readers.. clicking that English tab in the top left of the site.. ity'll give you our shitty preview site. Thanks Konami USA
Metal Gear Solid 4: Guns of the Patriots - Official Site
On it you'll see than Old Snake face we've come accustom too, as well as links to stuff like the Sony Ericson phone that's actually in the game, and that Regain energy drink. Oh and this.. i wont even try to figure out what it is, just see for yourself.....
But for the real deal, click that big thing that says Enter Flash Site. HERE, you'll find "Training Missions", for one you're probably gonna want to know Japanese.. cause Otacon does al ot of talking. But essentially you'll see alot of footage, but it has paths, choose the right one to proceed. Once you get the hang its pretty neat. You are awarded points as well, go to "Drebin's Shop" and use these towards downloads like wallpaper, iPhone wallpaper, screensavers, and music to play via the site (and only that way it seems...). There's also the usual character info, trailer, history, etc. Check it out for yourself!