Solution for 1-40 puzzle: Put a blue ball in the bottom string(between…

Solution for 1-40 puzzle:

Put a blue ball in the bottom string(between 3 yellows so that it will collapse).
Change to blue. Collapse the blue balls (that were joined after the last collapse)
Change to green sparkle(I don't know how it;s called. The one that changes color to green.Change BLUE to GREEN.
Collapse the bottom string with one green (in the middle).
Collapse the middle string with one yellow.
Shoot one green (between the yellows) in the upper string. Shoot a green ball and finish level.