It's obvious this game is difficult enough: but is beating it on Impossible too hard? 6 or 7 people at least have done it, but we have to consider IWBTG's small playerbase. I'd say as many as 1 in 1000 have done it.

Also, it's incredibly, incredibly fun. If you haven't played it, go download it. It's free. Just google search "I Wanna Be The Guy".