Move the blue "paddle" around, and avoid contact with everything.
DO NOT TRY TO CATCH THE BALLS! THEY ARE DEADLY!
Push the Stalactites back up to the ceiling simply by going underneath them.
At the end of each wave, you will have a short period of time when there is a pink shield behind your blue paddle. Use this shield to try and pick up some of the wandering balls.
AGAIN, DO NOT LET THE BALLS TOUCH YOUR PADDLE!
PLBM official website: http://www.plbm.com/.
English 
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