OK, we think we've got this time-waster figured out. The game has no directions, but the quiet little kitten in Chat Noir somehow kept us interested (OK, hypnotized) enough to figure it out on our own.

The point is to keep the cat from escaping from the grid. Click the circles to turn them dark green -- Fluffy can't jump onto those ones. Once you've got her on a single light green circle, you've topped the level. (Once you start playing, it should make sense.)

Be careful, s/he's a sneaky little meowser!