when it gets crowded you can sit on one edge (one on which a parallel dot doesn't catch you, and you only have to watch perpendicular ones) .. then JUMP OUT, GRAB ONE, AND GO BACK! .. lol ..
i'm sure that game is good for the brain .. when you get to medium level (about 40) the dots move at different speeds .. one hassle is you have to start over each day, but just leave it on tab and do it for a break .. oh .. the damn helicopter noise is new and you have to turn off the sound twice ..