Way to beat lvl 14 Just drop the 3 balls early. Put the purple ball in the middle and it will bounce to the right while the rest bounce to the left. Put the blue ball in and pop in the pink. Drop the yellow gate soon after. The drop the rest of the gates at the end.
Wow my first 2 posts are wrong.(for lvl 10) I'll refer to the microbes as microbe 1,2,3,4 from left to right. First attack the far left enemy cell with microbe 1 & 2. Quickly, use microbe 4 to back microbe 3 with the cut method. When the top left enemy cell respond by pushing microbe 1 back, attack with microbe 3 using the cut method. That will take over the top left cell with bonus tentacles (it adds the tentacles it was using to hold out microbe 1). Quickly shove out all of the power of microbe 4 to microbe 3 using the cut method. From there, just take the 2nd left enemy microbe and its a tug of war left. NOTE: when an enemy attacks, it weakens itself making it susceptible to a cut method takeover from another cell(thats a technique!).
Dammit (for lvl 10), I mean first use 2 of you microbes to attack (not the split one) on an enemy cell. The enemy cell will respond by pushing your microbes back. Use a 3rd microbe to attack the enemy using the cut method to quickly take over it. The end result is you get to have a very powerful cell because the tentacles that the enemy microbe was using to hold off your other 2 microbes is added to the total power of the new cell.
Lvl 10 is not that hard (it seems hard). First use 2 to attack a corner. The trick is to attack the cell that's attacking your cell. The type of attacking I'm refering to is the one where you split your line to do some quick damage. If you manage to take over the cell YOU GET ALL OF TENTACLES THAT THE CELL HAS (the ones the invader cell uses to take over yours). That way you get a powerful cell right off the bat.
Dam the boss and another flash stepping monster first popped near me when I got to the next level and I ended up dying (I can't take both at once, and they were the unrunnable too)