General Mills has launched a site called The Good Food Fight to promote eating better in America. Kinda funny coming from the company that owns the Pillsbury Dough Boy, Lucky Charms, Haagen-Dazs, and Hamburger Helper. But we give them a little break because they're being clever for once.
Your opponent then pops up in the content section of a web page with the healthy recipe on it and taunts you for about 60 seconds while you guys throw food at each other. Sometimes the taunts are educational ("Here's your recommended daily dose of Vitamin E, buddy boy"). The gobs of food he/she throws wind up hitting the other side of your screen - obscuring your view a bit. The one's you throw hit the web page and start to break parts of the design as your opponent scampers out of the way.
It also allows you to "Ambush a Friend" (send a friend technology).
Incidentally, this site was created by Hello Design out of Culver City, CA and was up for a Webby earlier this year. Nice design. Clear IA. Excellent animation. I loved the way the site pretends to break when you hit it with a meatball or something.