The goal of level 6 is to clear all 12 jellies and score 9 000 points in 16 moves. You'll notice a grid of lighter colored squares in this level. Those are jellies. To get rid of them you simply have to match the candies that are inside of the jelly. In all levels that contain jelly, the jelly must be removed in order to move on. Stripped candies are very useful in this level; they can get rid of jelly when there are no matches to be made inside the jelly area.