Far Cry 3: Blood Dragon seems to be an April Fool's Day joke, but there may be a real expansion hiding behind the prank.
The site seemingly is for an old 1980's console title, with a description, "The year is 2007. It is the future. Earth has been ravaged by a nuclear war and new paths for peace must be found. A U.S. cyborg army may have found a solution: a powerful bioweapon on a distant island. A Mark IV Cyber Commando, Sergeant Rex Power Colt has been sent over to gather information and figure out what the hell is going on."
Visiting thehas vinyl albums, VHS tapes and audio cassettes for sale.
However, if the player does the old Konami Code (up, up, down down, left, right, left, right, B, A), the cursor gets crosshairs that allows the player to shoot all of the items on the screen. Once the player does that, a little animated .gif appears of a mysterious red-eyed figure.
In addition, the site has an ESRB "Mating" rating on it, meaning if this is an April Fool's Joke, it's a darned expensive one, since having the ESRB rate your game costs a lot.