That's freaky! I've never seen an optical illusion like this. About 1/2 to 3/4 of the way through the image cycle, I start seeing twisted faces with huge eyes

That's freaky! I've never seen an optical illusion like this. About 1/2 to 3/4 of the way through the image cycle, I start seeing twisted faces with huge eyes appearing in my periphery... but if I stare at the faces, I see they are all normal.