Use the arrow keys to move around and pick up the dots. Space to let down the ladder. If any dots are touching your shadow when the ladder is fully down, they get pulled up. You cannot move when the ladder is fully down and when it is coming up. Pick up all the dots in the least amount of time.
Helicopter graphics from: http://www.teach-ict.com/programming/scratch/scratch_home.htm Idea from a wii play game.