It's a laugh and what red-blooded male wouldn't like seeing a nice set of boobs? Sure you can see them on Google but this is a just-for-fun game with a somewhat saucy prize. If the prude-brigade object, I give them my usual answer: Don't look, then!
It's laughable that people say that the girls are the ones being exploited here, too. They chose to be models of this type, are paid well and weren't forced to take their tops off for a living. I'd say the players are the ones being exploited if anything: Making them play the game (possibly over and over) with the incentive of a flash of their norks if you win! Well I'm sold but then again I'm recently single and so will get my jollies where I can.
Guns, girls and bare-boobs (sorry to knacker the alliteration but I can't think of a word for boobs that begins with "G" at the moment) - this game could only be any better if you got free beer mailed to you for winning as well!
Wardy