Well, on some of the later levels, I found that there is a few arrows of yellow bloons, and they tell you where you can get alost of points at once. There is a path, surrounded by veramic bloons on the higher levels, and you can get alot of blops if you travel that way. Tell me if this helped.

 

Here's a strategy that helped me a lot, when you get to the levels with the arrows they will go in a bit of a pattern. Come down from the top of the screen, stop just before going off the bottom and go up a little ways, and then go down off the screen (except for the later levels where it just goes straight down without stopping). What you should do is as it emerges from the top get close to it and then move down with it, as it goes back up then go up with it staying close (but not actually inside it) at all times. Get the idea? Using this method I've been able to pop almost all the bloons in each arrow and completely destroy all bloons in a few of them.

 

Cool, I'll try that next time I play.

 

i tried Harkugans strategy it works pretty good

 

After this thread got another post, I remembered that I had to try it, and it does work, alot better than I initially expacted... I'll have to tell a couple of my friends about it.