Here.
Those are cool. I laughed when it became clear what was happening in the last one, which I didn’t anticipate – obviously I wasted time other ways in the '70s.
Nitpick: Pac-Man was first released in 1980.
Nice.
Long friggin’ time ago, either way. 
I don’t really think it’s correct to call such animated Moire patterns “optical illusions”. This is vastly different from those “which line is longer” and Necker Cube things commonly called “optical illusions”.