I happened to stumble across what is possibly the internet's longest and most creative riddle. It's 139 levels long and only 0.034% have managed to reach level 100. (34 out of 100 000) Let's try to change that and head over to the riddle. A couple hints:
- GIMP, wget and nano/emacs/vi are your friends.
- Python's chr() is useful.
- Keep an open mind, and there's always a hint placed in the page's source.