Trust me when I say this though, in no way shape or form do I have any fast food chain or electronic device to blame for any of my physical features. But I do have Victoria's Secret to thank for my rockin' rack and their awesome bras!!!
As with any rumor on this site, I will not believe it without pictures.
But yeah, genetic makeup is just as much a part of the determining factor of obesity as anything else. Some people can eat as much food as they want and don't grow fat.
Videogames aren't directly responsible for obesity. They're simply responsible for making many kids less physically active.