The idea of buying an interactive commercial is like battery acid in the minds of most adult gamers, but we blissfully forget that we once paid full price for entire videogames that existed purely to push another product.
As children, we happily played games like Yo! Noid and Cool Spot, not to mention the shameless Biker Mice From Mars title that consistently reminded us of the delicious taste of Snickers. Back then, paying top dollar for a game that tricked children into getting diabetes was an acceptable practice, mostly because the games weren't all that terrible. Not great, but not terrible.
World Gone Sour evokes the spirit of the nineties with its "advergaming" properties. It promotes sugary food, you have to pay for it, and it's not terrible.