This was very funny. I'm not sure, but it sort of sounds like the same guys that did the Super Mario thing a few years ago (which, I tried in vain to find and could not).

Enjoy: http://3cx.org/misc/endofworld.swf

Update: I found 'the Super Mario thing'. It was the third result on google. I'm not sure how the hell I missed that. I don't think GroupX made the endoftheworld bit.

Enjoy this to: http://3cx.org/misc/mario.swf