20 Things You Didn't Know About Metal Gear Solid V: The Phantom Pain
9. Playing The Game On Your Birthday Activates A Special Surprise
Hideo Kojima has never been one to shy away from a detail-orientated Easter egg, and in The Phantom Pain, you might recall that the game asks you to enter your date of birth at the start.
And so, if you happen to be playing the game on your birthday, you'll be told to return to Mother Base immediately.
Upon arriving, Snake arms himself as it appears that the base is under attack, only to be met with the most surprising sight - a birthday party complete with singing and cake.
It's so gloriously goofy and yet such an awesome surprise for anyone playing on their birthday.