Absolutely. Cheating in a video game ? Happens all the time. There are many people out there who simply cannot stand losing. They're not there to play the game, they're there to win. Ask any company with an online FPS game. Even Minecraft has a server module to prevent cheating. Minecraft.
But the line that really gets me is "it was never meant with any bad intention". No it was meant with the intention of winning, because he obviously just couldn't stand the fact that everyone had observed his lackluster virtual performance and his ego couldn't take it any more.
When you get to that point, it doesn't matter what the goal of the competition is, you just want to show them all, charity be damned.
Well, one thing's for sure, there will be some tensions around the dinner table come next Christmas.