Tips to Obtain Rainbow to the Moon Achievement
Important! The starting containers they give you each time you complete a row don’t matter.
Only the containers you physically select yourself count.
So just make sure to stick to the pattern of blue, red, yellow that you see when the game’s first loading that level and the kitty’s jumping up into its starting position.
I.e. select only blue containers when you first start out in the puzzle until you create a point for the cat to jump up to, then only red, then only yellow, so on and so forth.
That should get you the achievement once you reach the top.