Hey Guys and Gals.. Just a 100% Achievement Guide/Walkthrough for those wanting to blast it out quick! :)
Go to 35:55 in the video to see what level and how its done.
I didn't do world 3 as TrickyRicky suggested simply because i wanted to show you and get all the 3 stars and trophies asap.. Instead i did it on World 6 - Level 3.. The stars are out of the main path for any Tetras to collect .