Am I doing something wrong? I don't see anything interesting. I see black lines and some art scrolling behind the lines. Is there some sort of illusion this is supposed to create?
I see, you have to use the scroll bar which goes one pixel at a time. This doesn't work for me if I use my scroll wheel on my mouse. It works if I grab the scroll bar and move downward.
For me the skull one just never worked right no matter how I tried scrolling. But the other ones work great.