Stuck on level 78

Any hints as to complete level 78.. There is a center row of white balls and a changing color ball second from last. Can't figure out how to enter middle row! Any help out there?

Hi tjay2009,

Welcome to the Pond!

Although I haven't played this game I would love to help you out!

Following some research, this only help I could find specific to this level is in the thread here, if you would like to check it out.

Best of luck!

bfgBaikal