Manipulate the rope to make a path for the marbles to roll down, then put them in the cup!

Tap the end of the rope to hold it, and swipe it to move it to another location.
Once you have a way to move the rope and put the marbles in the cup, swipe to cut the rope connected to the marbles and the marbles will fall and start rolling.

Marbles roll on the rope, and when they enter the cup, the stage is cleared.
If you can't get the marble into the cup, the game is over.