Level 578

Difficulty

 * The jellies are hard to reach. The ones in the bottom row will be quickly covered in chocolate. The ones in the second row from the bottom are protected by three layered icing. The two on the sides are at the bottom of two small columns.
 * The awkward shape of the board makes it difficult to create special candies, the presence of six colours makes it even harder.
 * The candy bombs dropping from the center dispenser distract you from the job of clearing jellies.
 * This level is still hard even with boosters. There is a very high chance that the booster could be in the row where the chocolate generator covers, making everything except the colour bomb completely useless (this point is only applicable on the web version. On mobile versions, you can exit the level without making a move, and you will still have the booster. Also you will not lose a life).
 * The jellies are worth 28,000 points. Hence, an additional 22,000 points is required to earn one star.

Strategy

 * Create special candies and try to position them in a useful location.
 * Do not waste too much time on the candy bombs. Break the icing and clear the jelly with special candies. When the bombs are about to explode, then try to clear them out the way. Do not wait for too many moves, or they will explode.

Difficulty

 * The presence of six colours makes it hard to create special candies. However, it is less critical due to the need the relatively isolated jellies and the candy bombs.
 * The jellies are worth 28,000 points. Hence, additional 122,000 points for two stars additional 172,000 points for three stars have to be earned through matching of candies.
 * The jellies are isolated at the bottom of the board, making it even harder to sustain huge point cascades.
 * The three layer icing cause moves to be spent to clear them. The chocolate spawner increases the difficulty of clearing jellies and creation of special candies by decreasing available board space or by covering the jellies with chocolate.
 * The liquorice swirls being dispensed increase the difficulty of creating special candies by decreasing available board space.
 * The conveyor belt may help or hinder the creation of special candies. Moreover, the spaces outside the conveyor are restricted and make it hard to create special candies.
 * The candy bomb dispensers endlessly dispense candy bombs, making it easier to earn more points.

Strategy

 * Clear many candy bombs by making matches at the areas around the conveyor belt to force the candy bomb dispenser to dispense candy bombs. Alternatively, create colour bomb + candy bomb combinations. The latter method is difficult due to the board having six candy colours and very little board space.

Trivia

 * There used to be a jelly underneath the chocolate spawner, making it impossible to clear without a jelly fish booster. It happened again on Level 380 in Dreamworld.