A long time ago I used to play a yahoo game and I can't remember the name of it.  It had a floating game board and this little guy you moved around the board that created a trail behind him that bordered off these moving balls and the goal was to trap the balls in a small of space as possible while filling up the board. It was timed. When you completed a level he would say " cool " It was kind of outer-spacy looking, like the board floated on a night  / star sky. Any ideas? I loved this game and am dieing to find it again.