Your new codename shall be "Nauseous Snake".
To celebrate, Hideo Kojima created a birthday cake that you can't eat unless you watch a 40-minute cutscene.
Picture Solid Snake vs. HulkAugust 26, 2013
Picture Metal Gear PlaygroundApril 01, 2013
Who wants to play FOXTAG?
Picture Solid Snake Balloon AnimalJanuary 04, 2013
Really, this is anything but solid.