19 Moves
Requirements:
4 Fireflies
12 Flowers
100 Onions
100 Suns
Light the fireflies
first. It always makes it easier when they are gone.
Once they are out of
the way, or while you are doing it, open the flowers. The more
flowers you hit when making rows, the quicker they will be removed
with less moves.
Watch out for
combinations and +5 moves, to remove all of the same crop. Both of
these will help your points add up, enabling you to get all your
requirements nicely.