Coke Wins was released only to Coca-Cola employees as a promotion.  I have seen it called The Coke Game, Coke Wins, Coke-Pepsi and Pepsi Invaders.  As far as I know, it was not given an official title and it doesn't have a label (although I have read that there was a box which may be where some of the names that this game goes by came from).  It is basically Space Invaders, but instead of shooting at aliens, you shoot at letters.  The letters form the word "P E P S I".  This game is super rare and sells for big bucks if you can find one at all.  I've never seen a copy in person, so for a description of the game play, see the listing for Space Invaders.  I think that there aren't as many game variations as in Space Invaders, but from what I've read, it's pretty much the same game.