Courtesy of
Kenosha Kid, you can get addicted to a new game,
this one. The idea, as far as I can figure it out, is to stop the cat from leaving the field, and the way to do that is to click on the light green dots to make them into dark green ones. The dark green ones work like a fence, or at least the kitty can't leap onto those.
Have fun, and a good weekend, too.