Whizzball is a sort of addictive game/puzzle from Discovery Kids. I just rounded 100 k points - and that put me in the "Top 50 000 Players"...(ranking as 49 009) so still a bit to go to reach the top 100 hall of fame :D
Good fun for kids of all ages in other words. Nice for a quick break (be sure to set a timer!) Wonderful use of Flash as well as user-contributed content - the players also build the various puzzles.