wow... I got the 10000 in under 4 mins. A line of saws as close as possible to the ground, about 10 launchers spread evenly on the ground, a couple mines, and level 5 flow from all pipes.
If you click on something in one side that isn't on the other, it will disappear. If you were to have clicked the same spot on the opposite picture, it would have gone there. So if you click it switches.