Gamespot:
If you've ever wondered what happens to those candies that disappear between your couch cushions, World Gone Sour has an answer, particularly if those candies happen to be Sour Patch Kids. These globs of sugar, specked with crumbs and cat fur though they may be, apparently want nothing more than to fight their way back into your mouth and sacrifice themselves on the altar of your molars. Surprisingly, Playbrains proves that it's possible to pull a satisfying platformer out of such a concept. Although a few of its gameplay elements might leave behind a bitter taste, World Gone Sour manages to hit a sweet spot that most "advergames" seem to miss.
Advergaming has a horrible--and undeserved--reputation.
GotGame: At first glance, World Gone Sour looks like a game that’s sole purpose is to advertise something to you while you play. Fortunately, not only is that not the case, but Playbrains manages to pump out a rather enjoyable platformer that looks kiddy but somehow ends up being a little on the adult side.
GameDynamo - "All in all, World Gone Sour was actually something of a treat to play. Oh, and there's also co-op – you can play through the game in a semi-competitive fashion with a friend's help."
