Finally, I did it!!!! My only suggestion is to go big or go home. The simple circles won't get it done, think through how to get huge circles to close up!

I cannot get pass this level with three stars either. I did something one time that created many yellow bombs but my score was low due to low number of yellows time after time. If I could figure out how to repeat with a multicolor bomb, I think I could get the three stars. Any insight?